mepc 52/24/add.2 annex 2 resolution mepc.117(52 ... · concerning the functions of the marine...

MEPC 52/24/Add.2

I:\MEPC\52\24-Add-2.doc

ANNEX 2

RESOLUTION MEPC.117(52)

Adopted on 15 October 2004

AMENDMENTS TO THE ANNEX OF THE PROTOCOL OF 1978

RELATING TO THE INTERNATIONAL CONVENTION FOR THE PREVENTION

OF POLLUTION FROM SHIPS, 1973

(Revised Annex I of MARPOL 73/78)

THE MARINE ENVIRONMENT PROTECTION COMMITTEE,

RECALLING article 38(a) of the Convention on the International Maritime Organization

concerning the functions of the Marine Environment Protection Committee (the Committee)

conferred upon it by international conventions for the prevention and control of marine pollution,

NOTING article 16 of the International Convention for the Prevention of Pollution from

Ships, 1973 (hereinafter referred to as the “1973 Convention”) and article VI of the Protocol of

1978 relating to the International Convention for the Prevention of Pollution from Ships, 1973

(hereinafter referred to as the “1978 Protocol”) which together specify the amendment procedure

of the 1978 Protocol and confer upon the appropriate body of the Organization the function of

considering and adopting amendments to the 1973 Convention, as modified by the 1978 Protocol

(MARPOL 73/78),

HAVING CONSIDERED the text of the revised Annex I of MARPOL 73/78,

1. ADOPTS, in accordance with article 16(2)(b), (c) and (d) of the 1973 Convention, the

revised Annex I of MARPOL 73/78, the text of which is set out at the annex to the present

resolution, each regulation being subject to separate consideration by the Parties pursuant to

article 16(2)(f)(ii) of the 1973 Convention;

2. DETERMINES, in accordance with article 16(2)(f)(iii) of the 1973 Convention, that the

revised Annex I of MARPOL 73/78 shall be deemed to have been accepted on 1 July 2006,

unless, prior to that date, not less than one-third of the Parties or Parties, the combined merchant

fleets of which constitute not less than 50 per cent of the gross tonnage of the world’s merchant

fleet, have communicated to the Organization their objection to the amendments;

3. INVITES the Parties to note that, in accordance with article 16(2)(g)(ii) of

the 1973 Convention, the revised Annex I of MARPOL 73/78 shall enter into force on

1 January 2007 upon its acceptance in accordance with paragraph 2 above;

4. REQUESTS the Secretary-General, in conformity with article 16(2)(e) of the

1973 Convention, to transmit to all Parties to MARPOL 73/78 certified copies of the present

resolution and the text of the revised Annex I of MARPOL 73/78 contained in the annex; and

5. REQUESTS FURTHER the Secretary-General to transmit copies of the present

resolution and its annex to the Members of the Organization which are not Parties to

MARPOL 73/78.

MEPC 52/24/Add.2

ANNEX 2


ANNEX

CHAPTER 1 - GENERAL

Regulation 1

Definitions

For the purposes of this Annex:

1 Oil means petroleum in any form including crude oil, fuel oil, sludge, oil refuse and

refined products (other than those petrochemicals which are subject to the provisions of Annex II

of the present Convention) and, without limiting the generality of the foregoing, includes the

substances listed in appendix I to this Annex.

2 Crude oil means any liquid hydrocarbon mixture occurring naturally in the earth whether

or not treated to render it suitable for transportation and includes:

.1 crude oil from which certain distillate fractions may have been removed; and

.2 crude oil to which certain distillate fractions may have been added.

3 Oily mixture means a mixture with any oil content.

4 Oil fuel means any oil used as fuel in connection with the propulsion and auxiliary

machinery of the ship in which such oil is carried.

5 Oil tanker means a ship constructed or adapted primarily to carry oil in bulk in its cargo

spaces and includes combination carriers, any "NLS tanker" as defined in Annex II of the present

Convention and any gas carrier as defined in regulation 3.20 of chapter II-1 of SOLAS 74 (as

amended), when carrying a cargo or part cargo of oil in bulk.

6 Crude oil tanker means an oil tanker engaged in the trade of carrying crude oil.

7 Product carrier means an oil tanker engaged in the trade of carrying oil other than

crude oil.

8 Combination carrier means a ship designed to carry either oil or solid cargoes in bulk.

9 Major conversion:

.1 means a conversion of a ship:

.1 which substantially alters the dimensions or carrying capacity of the ship;

or

.2 which changes the type of the ship; or

.3 the intent of which in the opinion of the Administration is substantially to

prolong its life; or

MEPC 52/24/Add.2

ANNEX 2


.4 which otherwise so alters the ship that, if it were a new ship, it would

become subject to relevant provisions of the present Convention not

applicable to it as an existing ship.

.2 Notwithstanding the provisions of this definition:

.1 conversion of an oil tanker of 20,000 tonnes deadweight and above

delivered on or before 1 June 1982, as defined in regulation 1.28.3, to

meet the requirements of regulation 18 of this Annex shall not be deemed

to constitute a major conversion for the purpose of this Annex; and

.2 conversion of an oil tanker delivered before 6 July 1996, as defined in

regulation 1.28.5, to meet the requirements of regulation 19 or 20 of this

Annex shall not be deemed to constitute a major conversion for the

purpose of this Annex.

10 Nearest land. The term from the nearest land means from the baseline from which the

territorial sea of the territory in question is established in accordance with international law,

except that, for the purposes of the present Convention "from the nearest land" off the

north-eastern coast of Australia shall mean from a line drawn from a point on the coast of

Australia in:

latitude 11°00' S, longitude 142°08' E

to a point in latitude 10°35' S, longitude 141°55' E,

thence to a point latitude 10°00' S, longitude 142°00' E,









thence to a point on the coast of Australia

in latitude 24°42' S, longitude 153°15' E.

11 Special area means a sea area where for recognized technical reasons in relation to its

oceanographical and ecological condition and to the particular character of its traffic the adoption

of special mandatory methods for the prevention of sea pollution by oil is required.

For the purposes of this Annex, the special areas are defined as follows:

.1 the Mediterranean Sea area means the Mediterranean Sea proper including the

gulfs and seas therein with the boundary between the Mediterranean and the

Black Sea constituted by the 41° N parallel and bounded to the west by the

Straits of Gibraltar at the meridian of 005°36' W;

.2 the Baltic Sea area means the Baltic Sea proper with the Gulf of Bothnia, the

Gulf of Finland and the entrance to the Baltic Sea bounded by the parallel of the

Skaw in the Skagerrak at 57°44.8' N;

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ANNEX 2


.3 the Black Sea area means the Black Sea proper with the boundary between the

Mediterranean Sea and the Black Sea constituted by the parallel 41° N;

.4 the Red Sea area means the Red Sea proper including the Gulfs of Suez and

Aqaba bounded at the south by the rhumb line between Ras si Ane (12°28.5' N,

043°19.6' E) and Husn Murad (12°40.4' N, 043°30.2' E);

.5 the Gulfs area means the sea area located north-west of the rhumb line between

Ras al Hadd (22°30' N, 059°48' E) and Ras al Fasteh (25°04' N, 061° 25' E);

.6 the Gulf of Aden area means that part of the Gulf of Aden between the Red Sea

and the Arabian Sea bounded to the west by the rhumb line between Ras si Ane

(12°28.5'N, 043°19.6' E) and Husn Murad (12°40.4' N, 043°30.2' E) and to the

east by the rhumb line between Ras Asir (11°50' N, 051°16.9' E) and the Ras

Fartak (15°35' N, 052°13.8' E);

.7 the Antarctic area means the sea area south of latitude 60°S; and

.8 the North West European waters include the North Sea and its approaches, the

Irish Sea and its approaches, the Celtic Sea, the English Channel and its

approaches and part of the North East Atlantic immediately to the west of Ireland.

The area is bounded by lines joining the following points:

48° 27' N on the French coast

48° 27' N; 006° 25' W

49° 52' N; 007° 44’ W

50° 30' N; 012° W

56° 30' N; 012° W

62° N; 003° W

62° N on the Norwegian coast

57° 44.8' N on the Danish and Swedish coasts

.9 the Oman area of the Arabian Sea means the sea area enclosed by the following

coordinates:

22� 30.00' N; 059� 48.00' E

23� 47.27' N; 060� 35.73' E

22� 40.62' N; 062� 25.29' E

21� 47.40' N; 063� 22.22' E

20� 30.37' N; 062� 52.41' E

19� 45.90' N; 062� 25.97' E

18� 49.92' N; 062� 02.94' E

17� 44.36' N; 061� 05.53' E

16� 43.71' N; 060� 25.62' E

16� 03.90' N; 059� 32.24' E

15� 15.20' N; 058� 58.52' E

14� 36.93' N; 058� 10.23' E

14� 18.93' N; 057� 27.03' E

14� 11.53' N; 056� 53.75' E

13� 53.80' N; 056� 19.24' E

MEPC 52/24/Add.2

ANNEX 2


13� 45.86' N; 055� 54.53' E

14� 27.38' N; 054� 51.42' E

14� 40.10' N; 054� 27.35'E

14� 46.21' N; 054� 08.56' E

15� 20.74' N; 053� 38.33' E

15� 48.69' N; 053� 32.07' E

16� 23.02' N; 053� 14.82' E

16� 39.06' N; 053� 06.52' E

12 Instantaneous rate of discharge of oil content means the rate of discharge of oil in litres

per hour at any instant divided by the speed of the ship in knots at the same instant.

13 Tank means an enclosed space which is formed by the permanent structure of a ship and

which is designed for the carriage of liquid in bulk.

14 Wing tank means any tank adjacent to the side shell plating.

15 Centre tank means any tank inboard of a longitudinal bulkhead.

16 Slop tank means a tank specifically designated for the collection of tank drainings, tank

washings and other oily mixtures.

17 Clean ballast means the ballast in a tank which since oil was last carried therein, has been

so cleaned that effluent therefrom if it were discharged from a ship which is stationary into clean

calm water on a clear day would not produce visible traces of oil on the surface of the water or on

adjoining shorelines or cause a sludge or emulsion to be deposited beneath the surface of the

water or upon adjoining shorelines. If the ballast is discharged through an oil discharge

monitoring and control system approved by the Administration, evidence based on such a system

to the effect that the oil content of the effluent did not exceed 15 parts per million shall be

determinative that the ballast was clean, notwithstanding the presence of visible traces.

18 Segregated ballast means the ballast water introduced into a tank which is completely

separated from the cargo oil and oil fuel system and which is permanently allocated to the

carriage of ballast or to the carriage of ballast or cargoes other than oil or noxious liquid

substances as variously defined in the Annexes of the present Convention.

19 Length (L) means 96 per cent of the total length on a waterline at 85 per cent of the least

moulded depth measured from the top of the keel, or the length from the foreside of the stem to

the axis of the rudder stock on that waterline, if that be greater. In ships designed with a rake of

keel the waterline on which this length is measured shall be parallel to the designed waterline.

The length (L) shall be measured in metres.

20 Forward and after perpendiculars shall be taken at the forward and after ends of the

length (L). The forward perpendicular shall coincide with the foreside of the stem on the

waterline on which the length is measured.

21 Amidships is at the middle of the length (L).

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ANNEX 2


22 Breadth (B) means the maximum breadth of the ship, measured amidships to the moulded

line of the frame in a ship with a metal shell and to the outer surface of the hull in a ship with a

shell of any other material. The breadth (B) shall be measured in metres.

23 Deadweight (DW) means the difference in tonnes between the displacement of a ship in

water of a relative density of 1.025 at the load waterline corresponding to the assigned summer

freeboard and the lightweight of the ship.

24 Lightweight means the displacement of a ship in metric tons without cargo, fuel,

lubricating oil, ballast water, fresh water and feed water in tanks, consumable stores, and

passengers and crew and their effects.

25 Permeability of a space means the ratio of the volume within that space which is assumed

to be occupied by water to the total volume of that space.

26 Volumes and areas in a ship shall be calculated in all cases to moulded lines.

27 Anniversary date means the day and the month of each year, which will correspond to the

date of expiry of the International Oil Pollution Prevention Certificate.

28.1 ship delivered on or before 31 December 1979 means a ship:

.1 for which the building contract is placed on or before 31 December 1975; or

.2 in the absence of a building contract, the keel of which is laid or which is at a

similar stage of construction on or before 30 June 1976; or

.3 the delivery of which is on or before 31 December 1979; or

.4 which has undergone a major conversion:

.1 for which the contract is placed on or before 31 December 1975; or

.2 in the absence of a contract, the construction work of which is begun on or

before 30 June 1976; or

.3 which is completed on or before 31 December 1979.

28.2 ship delivered after 31 December 1979 means a ship:

.1 for which the building contract is placed after 31 December 1975; or


similar stage of construction after 30 June 1976; or

.3 the delivery of which is after 31 December 1979; or


.1 for which the contract is placed after 31 December 1975; or

MEPC 52/24/Add.2

ANNEX 2


.2 in the absence of a contract, the construction work of which is begun after

30 June 1976; or

.3 which is completed after 31 December 1979.

28.3 oil tanker delivered on or before 1 June 1982 means an oil tanker:

.1 for which the building contract is placed on or before 1 June 1979; or


similar stage of construction on or before 1 January 1980; or

.3 the delivery of which is on or before 1 June 1982; or


.1 for which the contract is placed on or before 1 June 1979; or


before 1 January 1980; or

.3 which is completed on or before 1 June 1982

28.4 oil tanker delivered after 1 June 1982 means an oil tanker:

.1 for which the building contract is placed after 1 June 1979; or


similar stage of construction after 1 January 1980; or

.3 the delivery of which is after 1 June 1982; or


.1 for which the contract is placed after 1 June 1979; or

.2 in the absence of a contract, the construction work of which is begun after

1 January 1980; or

.3 which is completed after 1 June 1982.

28.5 oil tanker delivered before 6 July 1996 means an oil tanker:

.1 for which the building contract is placed before 6 July 1993; or


similar stage of construction before 6 January 1994; or

.3 the delivery of which is before 6 July 1996; or


MEPC 52/24/Add.2

ANNEX 2


.1 for which the contract is placed before 6 July 1993; or

.2 in the absence of a contract, the construction work of which is begun

before 6 January 1994; or

.3 which is completed before 6 July 1996.

28.6 oil tanker delivered on or after 6 July 1996 means an oil tanker:

.1 for which the building contract is placed on or after 6 July 1993; or


similar stage of construction on or after 6 January 1994; or

.3 the delivery of which is on or after 6 July 1996; or


.1 for which the contract is placed on or after 6 July 1993; or


after 6 January 1994; or

.3 which is completed on or after 6 July 1996.

28.7 oil tanker delivered on or after 1 February 2002 means an oil tanker:

.1 for which the building contract is placed on or after 1 February 1999; or


similar stage of construction on or after 1 August 1999; or

.3 the delivery of which is on or after 1 February 2002; or


.1 for which the contract is placed on or after 1 February 1999; or


after 1 August 1999; or

.3 which is completed on or after 1 February 2002.

28.8 oil tanker delivered on or after 1 January 2010 means an oil tanker:

.1 for which the building contract is placed on or after 1 January 2007; or


similar stage of construction on or after 1 July 2007; or

MEPC 52/24/Add.2

ANNEX 2


.3 the delivery of which is on or after 1 January 2010; or


.1 for which the contract is placed on or after 1 January 2007; or


after 1 July 2007; or

.3 which is completed on or after 1 January 2010.

29 Parts per million (ppm) means parts of oil per million parts of water by volume.

30 Constructed means a ship the keel of which is laid or which is at a similar stage of

construction.

Regulation 2

Application

1 Unless expressly provided otherwise, the provisions of this Annex shall apply to all ships.

2 In ships other than oil tankers fitted with cargo spaces which are constructed and utilized

to carry oil in bulk of an aggregate capacity of 200 cubic metres or more, the requirements of

regulations 16, 26.4, 29, 30, 31, 32, 34 and 36 of this Annex for oil tankers shall also apply to the

construction and operation of those spaces, except that where such aggregate capacity is less

than 1,000 cubic metres the requirements of regulation 34.6 of this Annex may apply in lieu of

regulations 29, 31 and 32.

3 Where a cargo subject to the provisions of Annex II of the present Convention is carried

in a cargo space of an oil tanker, the appropriate requirements of Annex II of the present

Convention shall also apply.

4 The requirements of regulations 29, 31 and 32 of this Annex shall not apply to oil tankers

carrying asphalt or other products subject to the provisions of this Annex, which through their

physical properties inhibit effective product/water separation and monitoring, for which the

control of discharge under regulation 34 of this Annex shall be effected by the retention of

residues on board with discharge of all contaminated washings to reception facilities.

5 Subject to the provisions of paragraph 6 of this regulation, regulations 18.6 to 18.8 of this

Annex shall not apply to an oil tanker delivered on or before 1 June 1982, as defined in

regulation 1.28.3, solely engaged in specific trades between:

.1 ports or terminals within a State Party to the present Convention; or

.2 ports or terminals of States Parties to the present Convention, where:

.1 the voyage is entirely within a Special Area; or

.2 the voyage is entirely within other limits designated by the Organization.

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ANNEX 2


6 The provisions of paragraph 5 of this regulation shall only apply when the ports or

terminals where cargo is loaded on such voyages are provided with reception facilities adequate

for the reception and treatment of all the ballast and tank washing water from oil tankers using

them and all the following conditions are complied with:

.1 subject to the exceptions provided for in regulation 4 of this Annex, all ballast

water, including clean ballast water, and tank washing residues are retained on

board and transferred to the reception facilities and the appropriate entry in the

Oil Record Book Part II referred to in regulation 36 of this Annex is endorsed by

the competent Port State Authority;

.2 agreement has been reached between the Administration and the Governments of

the Port States referred to in paragraphs 5.1 or 5.2 of this regulation concerning

the use of an oil tanker delivered on or before 1 June 1982, as defined in

regulation 1.28.3, for a specific trade;

.3 the adequacy of the reception facilities in accordance with the relevant provisions

of this Annex at the ports or terminals referred to above, for the purpose of this

regulation, is approved by the Governments of the States Parties to the present

Convention within which such ports or terminals are situated; and

.4 the International Oil Pollution Prevention Certificate is endorsed to the effect that

the oil tanker is solely engaged in such specific trade.

Regulation 3

Exemptions and waivers

1 Any ship such as hydrofoil, air-cushion vehicle, near-surface craft and submarine craft

etc. whose constructional features are such as to render the application of any of the provisions of

chapters 3 and 4 of this Annex relating to construction and equipment unreasonable or

impracticable may be exempted by the Administration from such provisions, provided that the

construction and equipment of that ship provides equivalent protection against pollution by oil,

having regard to the service for which it is intended.

2 Particulars of any such exemption granted by the Administration shall be indicated in the

Certificate referred to in regulation 7 of this Annex.

3 The Administration which allows any such exemption shall, as soon as possible, but not

more than 90 days thereafter, communicate to the Organization particulars of same and the

reasons therefore, which the Organization shall circulate to the Parties to the present Convention

for their information and appropriate action, if any.

4 The Administration may waive the requirements of regulations 29, 31 and 32 of this

Annex, for any oil tanker which engages exclusively on voyages both of 72 hours or less in

duration and within 50 nautical miles from the nearest land, provided that the oil tanker is

engaged exclusively in trades between ports or terminals within a State Party to the present

Convention. Any such waiver shall be subject to the requirement that the oil tanker shall retain

on board all oily mixtures for subsequent discharge to reception facilities and to the

determination by the Administration that facilities available to receive such oily mixtures are

adequate.

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ANNEX 2


5 The Administration may waive the requirements of regulations 31 and 32 of this Annex

for oil tankers other than those referred to in paragraph 4 of this regulation in cases where:

.1 the tanker is an oil tanker delivered on or before 1 June 1982, as defined in

regulation 1.28.3, of 40,000 tonnes deadweight or above, as referred to in

regulation 2.5 of this Annex, solely engaged in specific trades, and the conditions

specified in regulation 2.6 of this Annex are complied with; or

.2 the tanker is engaged exclusively in one or more of the following categories of

voyages:

.1 voyages within special areas; or

.2 voyages within 50 nautical miles from the nearest land outside special

areas where the tanker is engaged in:

.1 trades between ports or terminals of a State Party to the present

Convention; or

.2 restricted voyages as determined by the Administration, and

of 72 hours or less in duration;

provided that all of the following conditions are complied with:

.3 all oily mixtures are retained on board for subsequent discharge to

reception facilities;

.4 for voyages specified in paragraph 5.2.2 of this regulation, the

Administration has determined that adequate reception facilities are

available to receive such oily mixtures in those oil loading ports or

terminals the tanker calls at;

.5 the International Oil Pollution Prevention Certificate, when

required, is endorsed to the effect that the ship is exclusively

engaged in one or more of the categories of voyages specified in

paragraphs 5.2.1 and 5.2.2.2 of this regulation; and

.6 the quantity, time and port of discharge are recorded in the

Oil Record Book.

Regulation 4

Exceptions

Regulations 15 and 34 of this Annex shall not apply to:

.1 the discharge into the sea of oil or oily mixture necessary for the purpose of

securing the safety of a ship or saving life at sea; or

.2 the discharge into the sea of oil or oily mixture resulting from damage to a ship or

its equipment:

MEPC 52/24/Add.2

ANNEX 2


.1 provided that all reasonable precautions have been taken after the

occurrence of the damage or discovery of the discharge for the purpose of

preventing or minimizing the discharge; and

.2 except if the owner or the master acted either with intent to cause damage,

or recklessly and with knowledge that damage would probably result; or

.3 the discharge into the sea of substances containing oil, approved by the

Administration, when being used for the purpose of combating specific pollution

incidents in order to minimize the damage from pollution. Any such discharge

shall be subject to the approval of any Government in whose jurisdiction it is

contemplated the discharge will occur.

Regulation 5

Equivalents

1 The Administration may allow any fitting, material, appliance or apparatus to be fitted in

a ship as an alternative to that required by this Annex if such fitting, material, appliance or

apparatus is at least as effective as that required by this Annex. This authority of the

Administration shall not extend to substitution of operational methods to effect the control of

discharge of oil as equivalent to those design and construction features which are prescribed by

regulations in this Annex.

2 The Administration which allows a fitting, material, appliance or apparatus to be fitted in

a ship as an alternative to that required by this Annex shall communicate particulars thereof to

the Organization for circulation to the Parties to the Convention for their information and

appropriate action, if any.

CHAPTER 2 - SURVEYS AND CERTIFICATION

Regulation 6

Surveys

1 Every oil tanker of 150 gross tonnage and above, and every other ship of 400 gross

tonnage and above shall be subject to the surveys specified below:

.1 an initial survey before the ship is put in service or before the Certificate required

under regulation 7 of this Annex is issued for the first time, which shall include a

complete survey of its structure, equipment, systems, fittings, arrangements and

material in so far as the ship is covered by this Annex. This survey shall be such

as to ensure that the structure, equipment, systems, fittings, arrangements and

material fully comply with the applicable requirements of this Annex;

.2 a renewal survey at intervals specified by the Administration, but not exceeding

5 years, except where regulation 10.2.2, 10.5, 10.6 or 10.7 of this Annex is

applicable. The renewal survey shall be such as to ensure that the structure,

equipment, systems, fittings, arrangements and material fully comply with

applicable requirements of this Annex;

MEPC 52/24/Add.2

ANNEX 2


.3 an intermediate survey within 3 months before or after the second anniversary

date or within 3 months before or after the third anniversary date of the Certificate

which shall take the place of one of the annual surveys specified in paragraph 1.4

of this regulation. The intermediate survey shall be such as to ensure that the

equipment and associated pump and piping systems, including oil discharge

monitoring and control systems, crude oil washing systems, oily-water separating

equipment and oil filtering systems, fully comply with the applicable requirements

of this Annex and are in good working order. Such intermediate surveys shall be

endorsed on the Certificate issued under regulation 7 or 8 of this Annex;

.4 an annual survey within 3 months before or after each anniversary date of the

Certificate, including a general inspection of the structure, equipment, systems,

fittings, arrangements and material referred to in paragraph 1.1 of this regulation

to ensure that they have been maintained in accordance with paragraphs 4.1

and 4.2 of this regulation and that they remain satisfactory for the service for

which the ship is intended. Such annual surveys shall be endorsed on the

Certificate issued under regulation 7 or 8 of this Annex; and

.5 an additional survey either general or partial, according to the circumstances, shall

be made after a repair resulting from investigations prescribed in paragraph 4.3 of

this regulation, or whenever any important repairs or renewals are made. The

survey shall be such as to ensure that the necessary repairs or renewals have been

effectively made, that the material and workmanship of such repairs or renewals

are in all respects satisfactory and that the ship complies in all respects with the

requirements of this Annex.

2 The Administration shall establish appropriate measures for ships which are not subject to

the provisions of paragraph 1 of this regulation in order to ensure that the applicable provisions

of this Annex are complied with.

3.1 Surveys of ships as regards the enforcement of the provisions of this Annex shall be

carried out by officers of the Administration. The Administration may, however, entrust the

surveys either to surveyors nominated for the purpose or to organizations recognized by it. Such

organizations shall comply with the guidelines adopted by the Organization by

resolution A.739(18), as may be amended by the Organization, and the specifications adopted by

the Organization by resolution A.789(19), as may be amended by the Organization, provided that

such amendments are adopted, brought into force and take effect in accordance with the

provisions of article 16 of the present Convention concerning the amendment procedures

applicable to this Annex.

3.2 An Administration nominating surveyors or recognizing organizations to conduct surveys

as set forth in paragraph 3.1 of this regulation shall, as a minimum, empower any nominated

surveyor or recognized organization to:

.1 require repairs to a ship; and

.2 carry out surveys, if requested by the appropriate authorities of a port State.

The Administration shall notify the Organization of the specific responsibilities and conditions of

the authority delegated to the nominated surveyors or recognized organizations, for circulation to

Parties to the present Convention for the information of their officers.

MEPC 52/24/Add.2

ANNEX 2


3.3 When a nominated surveyor or recognized organization determines that the condition of

the ship or its equipment does not correspond substantially with the particulars of the Certificate

or is such that the ship is not fit to proceed to sea without presenting an unreasonable threat of

harm to the marine environment, such surveyor or organization shall immediately ensure that

corrective action is taken and shall in due course notify the Administration. If such corrective

action is not taken the Certificate shall be withdrawn and the Administration shall be notified

immediately; and if the ship is in a port of another Party, the appropriate authorities of the port

State shall also be notified immediately. When an officer of the Administration, a nominated

surveyor or a recognized organization has notified the appropriate authorities of the port State,

the Government of the port State concerned shall give such officer, surveyor or organization any

necessary assistance to carry out their obligations under this regulation. When applicable, the

Government of the port State concerned shall take such steps as will ensure that the ship shall not

sail until it can proceed to sea or leave the port for the purpose of proceeding to the nearest

appropriate repair yard available without presenting an unreasonable threat of harm to the marine

environment.

3.4 In every case, the Administration concerned shall fully guarantee the completeness and

efficiency of the survey and shall undertake to ensure the necessary arrangements to satisfy this

obligation.

4.1 The condition of the ship and its equipment shall be maintained to conform with the

provisions of the present Convention to ensure that the ship in all respects will remain fit to

proceed to sea without presenting an unreasonable threat of harm to the marine environment.

4.2 After any survey of the ship under paragraph 1 of this regulation has been completed, no

change shall be made in the structure, equipment, systems, fittings, arrangements or material

covered by the survey, without the sanction of the Administration, except the direct replacement

of such equipment and fittings.

4.3 Whenever an accident occurs to a ship or a defect is discovered which substantially

affects the integrity of the ship or the efficiency or completeness of its equipment covered by this

Annex the master or owner of the ship shall report at the earliest opportunity to the

Administration, the recognized organization or the nominated surveyor responsible for issuing

the relevant Certificate, who shall cause investigations to be initiated to determine whether a

survey as required by paragraph 1 of this regulation is necessary. If the ship is in a port of

another Party, the master or owner shall also report immediately to the appropriate authorities of

the port State and the nominated surveyor or recognized organization shall ascertain that such

report has been made.

Regulation 7

Issue or endorsement of certificate

1 An International Oil Pollution Prevention Certificate shall be issued, after an initial or

renewal survey in accordance with the provisions of regulation 6 of this Annex, to any oil tanker

of 150 gross tonnage and above and any other ships of 400 gross tonnage and above which are

engaged in voyages to ports or offshore terminals under the jurisdiction of other Parties to the

present Convention.

MEPC 52/24/Add.2

ANNEX 2


2 Such certificate shall be issued or endorsed as appropriate either by the Administration or

by any persons or organization duly authorized by it. In every case the Administration assumes

full responsibility for the certificate.

Regulation 8

Issue or endorsement of certificate by another Government

1 The Government of a Party to the present Convention may, at the request of the

Administration, cause a ship to be surveyed and, if satisfied that the provisions of this Annex are

complied with, shall issue or authorize the issue of an International Oil Pollution Prevention

Certificate to the ship and where appropriate, endorse or authorize the endorsement of that

certificate on the ship in accordance with this Annex.

2 A copy of the certificate and a copy of the survey report shall be transmitted as soon as

possible to the requesting Administration.

3 A certificate so issued shall contain a statement to the effect that it has been issued at the

request of the Administration and it shall have the same force and receive the same recognition as

the certificate issued under regulation 7 of this Annex.

4 No International Oil Pollution Prevention Certificate shall be issued to a ship, which is

entitled to fly the flag of a State, which is not a Party.

Regulation 9

Form of certificate

The International Oil Pollution Prevention Certificate shall be drawn up in the form

corresponding to the model given in appendix II to this Annex and shall be at least in English,

French or Spanish. If an official language of the issuing country is also used, this shall prevail in

case of a dispute or discrepancy.

Regulation 10

Duration and validity of certificate

1 An International Oil Pollution Prevention Certificate shall be issued for a period specified

by the Administration, which shall not exceed five years.

2.1 Notwithstanding the requirements of paragraph 1 of this regulation, when the renewal

survey is completed within 3 months before the expiry date of the existing certificate, the new

certificate shall be valid from the date of completion of the renewal survey to a date not

exceeding 5 years from the date of expiry of the existing certificate.

2.2 When the renewal survey is completed after the expiry date of the existing certificate, the

new certificate shall be valid from the date of completion of the renewal survey to a date not

exceeding 5 years from the date of expiry of the existing certificate.

2.3 When the renewal survey is completed more than 3 months before the expiry date of the

existing certificate, the new certificate shall be valid from the date of completion of the renewal

survey to a date not exceeding 5 years from the date of completion of the renewal survey.

MEPC 52/24/Add.2

ANNEX 2


3 If a certificate is issued for a period of less than 5 years, the Administration may extend

the validity of the certificate beyond the expiry date to the maximum period specified in

paragraph 1 of this regulation, provided that the surveys referred to in regulations 6.1.3 and 6.1.4

of this Annex applicable when a certificate is issued for a period of 5 years are carried out as

appropriate.

4 If a renewal survey has been completed and a new certificate cannot be issued or placed

on board the ship before the expiry date of the existing certificate, the person or organization

authorized by the Administration may endorse the existing certificate and such a certificate shall

be accepted as valid for a further period which shall not exceed 5 months from the expiry date.

5 If a ship at the time when a certificate expires is not in a port in which it is to be surveyed,

the Administration may extend the period of validity of the certificate but this extension shall be

granted only for the purpose of allowing the ship to complete its voyage to the port in which it is

to be surveyed, and then only in cases where it appears proper and reasonable to do so.

No certificate shall be extended for a period longer than 3 months, and a ship to which an

extension is granted shall not, on its arrival in the port in which it is to be surveyed, be entitled by

virtue of such extension to leave that port without having a new certificate. When the renewal

survey is completed, the new certificate shall be valid to a date not exceeding 5 years from the

date of expiry of the existing certificate before the extension was granted.

6 A certificate issued to a ship engaged on short voyages which has not been extended

under the foregoing provisions of this regulation may be extended by the Administration for a

period of grace of up to one month from the date of expiry stated on it. When the renewal survey

is completed, the new certificate shall be valid to a date not exceeding 5 years from the date of

expiry of the existing certificate before the extension was granted.

7 In special circumstances, as determined by the Administration, a new certificate need not

be dated from the date of expiry of the existing certificate as required by paragraphs 2.2, 5 or 6 of

this regulation. In these special circumstances, the new certificate shall be valid to a date not

exceeding 5 years from the date of completion of the renewal survey.

8 If an annual or intermediate survey is completed before the period specified in

regulation 6 of this Annex, then:

.1 the anniversary date shown on the certificate shall be amended by endorsement to

a date which shall not be more than 3 months later than the date on which the

survey was completed;

.2 the subsequent annual or intermediate survey required by regulation 6.1 of this

Annex shall be completed at the intervals prescribed by that regulation using the

new anniversary date; and

.3 the expiry date may remain unchanged provided one or more annual or

intermediate surveys, as appropriate, are carried out so that the maximum intervals

between the surveys prescribed by regulation 6.1 of this Annex are not exceeded.

9 A certificate issued under regulation 7 or 8 of this Annex shall cease to be valid in any of

the following cases:

MEPC 52/24/Add.2

ANNEX 2


.1 if the relevant surveys are not completed within the periods specified under

regulation 6.1 of this Annex;

.2 if the certificate is not endorsed in accordance with regulation 6.1.3 or 6.1.4 of this

Annex; or

.3 upon transfer of the ship to the flag of another State. A new certificate shall only

be issued when the Government issuing the new certificate is fully satisfied that

the ship is in compliance with the requirements of regulations 6.4.1 and 6.4.2 of

this Annex. In the case of a transfer between Parties, if requested within 3 months

after the transfer has taken place, the Government of the Party whose flag the ship

was formerly entitled to fly shall, as soon as possible, transmit to the

Administration copies of the certificate carried by the ship before the transfer and,

if available, copies of the relevant survey reports.

Regulation 11

Port State control on operational requirements*

1 A ship when in a port or an offshore terminal of another Party is subject to inspection by

officers duly authorized by such Party concerning operational requirements under this Annex,

where there are clear grounds for believing that the master or crew are not familiar with essential

shipboard procedures relating to the prevention of pollution by oil.

2 In the circumstances given in paragraph 1 of this regulation, the Party shall take such

steps as will ensure that the ship shall not sail until the situation have been brought to order in

accordance with the requirements of this Annex.

3 Procedures relating to the port State control prescribed in article 5 of the present

Convention shall apply to this regulation.

4 Nothing in this regulation shall be construed to limit the rights and obligations of a Party

carrying out control over operational requirements specifically provided for in the present

Convention.

* Refer to the Procedures for port State control, adopted by the Organization by resolution A.787(19) as

amended by resolution A.882(21); see IMO publication, sales No. IMO-650E.

MEPC 52/24/Add.2

ANNEX 2


CHAPTER 3 - REQUIREMENTS FOR MACHINERY SPACES OF ALL SHIPS

PART A CONSTRUCTION

Regulation 12

Tanks for oil residues (sludge)

1 Every ship of 400 gross tonnage and above shall be provided with a tank or tanks of

adequate capacity, having regard to the type of machinery and length of voyage, to receive the oil

residues (sludge) which cannot be dealt with otherwise in accordance with the requirements of

this Annex, such as those resulting from the purification of fuel and lubricating oils and oil

leakages in the machinery spaces.

2 Piping to and from sludge tanks shall have no direct connection overboard, other than the

standard discharge connection referred to in regulation 13.

3 In ships delivered after 31 December 1979, as defined in regulation 1.28.2, tanks for

oil residues shall be designed and constructed so as to facilitate their cleaning and the discharge

of residues to reception facilities. Ships delivered on or before 31 December 1979, as defined in

regulation 1.28.1, shall comply with this requirement as far as is reasonable and practicable.

Regulation 13

Standard discharge connection

To enable pipes of reception facilities to be connected with the ship's discharge pipeline for

residues from machinery bilges and from sludge tanks, both lines shall be fitted with a standard

discharge connection in accordance with the following table:

Standard dimensions of flanges for discharge connections

Description Dimension

Outside diameter 215 mm

Inner diameter According to pipe outside diameter

Bolt circle diameter 183 mm

Slots in flange 6 holes 22 mm in diameter equidistantly

placed on a bolt circle of the above diameter,

slotted to the flange periphery. The slot width

to be 22 mm

Flange thickness 20 mm

Bolts and nuts:

quantity, diameter

6, each of 20 mm in diameter and of suitable

length

The flange is designed to accept pipes up to a maximum internal diameter of 125 mm and shall

be of steel or other equivalent material having a flat face. This flange, together with a gasket

of oil-proof material, shall be suitable for a service pressure of 600 kPa.

MEPC 52/24/Add.2

ANNEX 2


PART B EQUIPMENT

Regulation 14

Oil filtering equipment

1 Except as specified in paragraph 3 of this regulation any ship of 400 gross tonnage and

above but less than 10,000 gross tonnage shall be fitted with oil filtering equipment complying

with paragraph 6 of this regulation. Any such ship which may discharge into the sea ballast

water retained in fuel oil tanks in accordance with regulation 16.2 shall comply with paragraph 2

of this regulation.

2 Except as specified in paragraph 3 of this regulation any ship of 10,000 gross tonnage and

above shall be fitted with oil filtering equipment complying with paragraph 7 of this regulation.

3 Ships, such as hotel ships, storage vessels, etc., which are stationary except for

non-cargo-carrying relocation voyages need not be provided with oil filtering equipment. Such

ships shall be provided with a holding tank having a volume adequate, to the satisfaction of the

Administration, for the total retention on board of the oily bilge water. All oily bilge water shall

be retained on board for subsequent discharge to reception facilities.

4 The Administration shall ensure that ships of less than 400 gross tonnage are equipped, as

far as practicable, to retain on board oil or oily mixtures or discharge them in accordance with the

requirements of regulation 15.6 of this Annex.

5 The Administration may waive the requirements of paragraphs 1 and 2 of this

regulation for:

.1 any ship engaged exclusively on voyages within special areas, or

.2 any ship certified under the International Code of Safety for High-Speed Craft

(or otherwise within the scope of this Code with regard to size and design)

engaged on a scheduled service with a turn-around time not exceeding 24 hours

and covering also non-passenger/cargo-carrying relocation voyages for these

ships,

.3 with regard to the provision of subparagraphs .1 and .2 above, the following

conditions shall be complied with:

.1 the ship is fitted with a holding tank having a volume adequate, to the

satisfaction of the Administration, for the total retention on board of the

oily bilge water;

.2 all oily bilge water is retained on board for subsequent discharge to

reception facilities;

.3 the Administration has determined that adequate reception facilities are

available to receive such oily bilge water in a sufficient number of ports or

terminals the ship calls at;

MEPC 52/24/Add.2

ANNEX 2


.4 the International Oil Pollution Prevention Certificate, when required, is

endorsed to the effect that the ship is exclusively engaged on the voyages

within special areas or has been accepted as a high-speed craft for the

purpose of this regulation and the service is identified; and

.5 the quantity, time, and port of the discharge are recorded in the

Oil Record Book Part I.

6 Oil filtering equipment referred to in paragraph 1 of this regulation shall be of a design

approved by the Administration and shall be such as will ensure that any oily mixture discharged

into the sea after passing through the system has an oil content not exceeding 15 parts per

million. In considering the design of such equipment, the Administration shall have regard to the

specification recommended by the Organization.*

7 Oil filtering equipment referred to in paragraph 2 of this regulation shall comply with

paragraph 6 of this regulation. In addition, it shall be provided with alarm arrangement to

indicate when this level cannot be maintained. The system shall also be provided with

arrangements to ensure that any discharge of oily mixtures is automatically stopped when the oil

content of the effluent exceeds 15 parts per million. In considering the design of such equipment

and approvals, the Administration shall have regard to the specification recommended by the

Organization.*

PART C CONTROL OF OPERATIONAL DISCHARGE OF OIL

Regulation 15

Control of discharge of oil

1 Subject to the provisions of regulation 4 of this annex and paragraphs 2, 3, and 6 of this

regulation, any discharge into the sea of oil or oily mixtures from ships shall be prohibited.

A. Discharges outside special areas

2 Any discharge into the sea of oil or oily mixtures from ships of 400 gross tonnage and

above shall be prohibited except when all the following conditions are satisfied:

.1 the ship is proceeding en route;

.2 the oily mixture is processed through an oil filtering equipment meeting the

requirements of regulation 14 of this Annex;

.3 the oil content of the effluent without dilution does not exceed 15 parts per

million;

* Refer to the Recommendation on International Performance and Test Specification for Oily-Water

Separating Equipment and Oil Content Meters, adopted by the Organization by Assembly resolution

A.393(X), or the Guidelines and specifications for Pollution Prevention equipment for Machinery space

Bilges of Ships, adopted by the Marine Environment Protection Committee by resolution MEPC.60(33), or

the revised guidelines and specification for pollution prevention equipment for machinery space bilges of

ships, adopted by the Marine Environment Protection Committee by resolution MEPC.107(49).

MEPC 52/24/Add.2

ANNEX 2


.4 the oily mixture does not originate from cargo pump room bilges on oil tankers;

and

.5 the oily mixture, in case of oil tankers, is not mixed with oil cargo residues.

B. Discharges in special areas

3 Any discharge into the sea of oil or oily mixtures from ships of 400 gross tonnage and

above shall be prohibited except when all of the following conditions are satisfied:


.2 the oily mixture is processed through an oil filtering equipment meeting the

requirements of regulation 14.7 of this Annex;

.3 the oil content of the effluent without dilution does not exceed 15 parts per

million;


and


4 In respect of the Antarctic area, any discharge into the sea of oil or oily mixtures from any

ship shall be prohibited.

5 Nothing in this regulation shall prohibit a ship on a voyage only part of which is in a

special area from discharging outside a special area in accordance with paragraphs 2 of this

regulation.

C. Requirements for ships of less than 400 gross tonnage in all areas except the

Antarctic area

6 In the case of a ship of less than 400 gross tonnage, oil and all oily mixtures shall either

be retained on board for subsequent discharge to reception facilities or discharged into the sea in

accordance with the following provisions :


.2 the ship has in operation equipment of a design approved by the Administration

that ensures that the oil content of the effluent without dilution does not exceed

15 parts per million;


and


MEPC 52/24/Add.2

ANNEX 2


D. General requirements

7 Whenever visible traces of oil are observed on or below the surface of the water in the

immediate vicinity of a ship or its wake, Governments of Parties to the present Convention

should, to the extent they are reasonably able to do so, promptly investigate the facts bearing on

the issue of whether there has been a violation of the provisions of this regulation. The

investigation should include, in particular, the wind and sea conditions, the track and speed of the

ship, other possible sources of the visible traces in the vicinity, and any relevant oil discharge

records.

8 No discharge into the sea shall contain chemicals or other substances in quantities or

concentrations which are hazardous to the marine environment or chemicals or other substances

introduced for the purpose of circumventing the conditions of discharge specified in this

regulation.

9 The oil residues which cannot be discharged into the sea in compliance with this

regulation shall be retained on board for subsequent discharge to reception facilities.

Regulation 16

Segregation of oil and water ballast and carriage of oil in forepeak tanks

1 Except as provided in paragraph 2 of this regulation, in ships delivered after

31 December 1979, as defined in regulation 1.28.2, of 4,000 gross tonnage and above other than

oil tankers, and in oil tankers delivered after 31 December 1979, as defined in regulation 1.28.2,

of 150 gross tonnage and above, no ballast water shall be carried in any oil fuel tank.

2 Where the need to carry large quantities of oil fuel render it necessary to carry ballast

water which is not a clean ballast in any oil fuel tank, such ballast water shall be discharged to

reception facilities or into the sea in compliance with regulation 15 of this Annex using the

equipment specified in regulation 14.2 of this Annex, and an entry shall be made in the

Oil Record Book to this effect.

3 In a ship of 400 gross tonnage and above, for which the building contract is placed after

1 January 1982 or, in the absence of a building contract, the keel of which is laid or which is at a

similar stage of construction after 1 July 1982, oil shall not be carried in a forepeak tank or a tank

forward of the collision bulkhead.

4 All ships other than those subject to paragraphs 1 and 3 of this regulation shall comply

with the provisions of those paragraphs as far as is reasonable and practicable.

Regulation 17

Oil Record Book, Part I - Machinery space operations

1 Every oil tanker of 150 gross tonnage and above and every ship of 400 gross tonnage and

above other than an oil tanker shall be provided with an Oil Record Book Part I (Machinery

Space Operations). The Oil Record Book, whether as a part of the ship’s official log-book or

otherwise, shall be in the Form specified in appendix III to this Annex.

MEPC 52/24/Add.2

ANNEX 2


2 The Oil Record Book Part I shall be completed on each occasion, on a tank-to-tank basis

if appropriate, whenever any of the following machinery space operations takes place in the ship:

.1 ballasting or cleaning of oil fuel tanks;

.2 discharge of dirty ballast or cleaning water from oil fuel tanks;

.3 collection and disposal of oil residues (sludge and other oil residues);

.4 discharge overboard or disposal otherwise of bilge water which has accumulated

in machinery spaces; and

.5 bunkering of fuel or bulk lubricating oil.

3 In the event of such discharge of oil or oily mixture as is referred to in regulation 4 of this

Annex or in the event of accidental or other exceptional discharge of oil not excepted by that

regulation, a statement shall be made in the Oil Record Book Part I of the circumstances of, and

the reasons for, the discharge.

4 Each operation described in paragraph 2 of this regulation shall be fully recorded without

delay in the Oil Record Book Part I, so that all entries in the book appropriate to that operation

are completed. Each completed operation shall be signed by the officer or officers in charge of

the operations concerned and each completed page shall be signed by the master of ship. The

entries in the Oil Record Book Part I, for ships holding an International Oil Pollution Prevention

Certificate, shall be at least in English, French or Spanish. Where entries in an official national

language of the State whose flag the ship is entitled to fly are also used, this shall prevail in case

of a dispute or discrepancy.

5 Any failure of the oil filtering equipment shall be recorded in the Oil Record Book Part I.

6 The Oil Record Book Part I, shall be kept in such a place as to be readily available for

inspection at all reasonable times and, except in the case of unmanned ships under tow, shall be

kept on board the ship. It shall be preserved for a period of three years after the last entry has

been made.

7 The competent authority of the Government of a Party to the present Convention may

inspect the Oil Record Book Part I on board any ship to which this Annex applies while the ship

is in its port or offshore terminals and may make a copy of any entry in that book and may

require the master of the ship to certify that the copy is a true copy of such entry. Any copy so

made which has been certified by the master of the ship as a true copy of an entry in the ship's

Oil Record Book Part I shall be made admissible in any judicial proceedings as evidence of the

facts stated in the entry. The inspection of an Oil Record Book Part I and the taking of a certified

copy by the competent authority under this paragraph shall be performed as expeditiously as

possible without causing the ship to be unduly delayed.

MEPC 52/24/Add.2

ANNEX 2


CHAPTER 4 - REQUIREMENTS FOR THE CARGO AREA OF OIL TANKERS

PART A CONSTRUCTION

Regulation 18 Segregated Ballast Tanks

Oil tankers of 20,000 tonnes deadweight and above delivered after 1 June 1982

1 Every crude oil tanker of 20,000 tonnes deadweight and above and every product carrier

of 30,000 tonnes deadweight and above delivered after 1 June 1982, as defined in

regulation 1.28.4, shall be provided with segregated ballast tanks and shall comply with

paragraphs 2, 3 and 4, or 5 as appropriate, of this regulation.

2 The capacity of the segregated ballast tanks shall be so determined that the ship may

operate safely on ballast voyages without recourse to the use of cargo tanks for water ballast

except as provided for in paragraph 3 or 4 of this regulation. In all cases, however, the capacity

of segregated ballast tanks shall be at least such that, in any ballast condition at any part of the

voyage, including the conditions consisting of lightweight plus segregated ballast only, the ship's

draughts and trim can meet the following requirements:

.1 the moulded draught amidships (dm) in metres (without taking into account any

ship's deformation) shall not be less than:

dm = 2.0 + 0.02L

.2 the draughts at the forward and after perpendiculars shall correspond to those

determined by the draught amidships (dm) as specified in paragraph 2.1 of this

regulation, in association with the trim by the stern of not greater than 0.015L;

and

.3 in any case the draught at the after perpendicular shall not be less than that which

is necessary to obtain full immersion of the propeller(s).

3 In no case shall ballast water be carried in cargo tanks, except:

.1 on those rare voyages when weather conditions are so severe that, in the opinion

of the master, it is necessary to carry additional ballast water in cargo tanks for the

safety of the ship; and

.2 in exceptional cases where the particular character of the operation of an oil tanker

renders it necessary to carry ballast water in excess of the quantity required under

paragraph 2 of this regulation, provided that such operation of the oil tanker falls

under the category of exceptional cases as established by the Organization.

Such additional ballast water shall be processed and discharged in compliance with regulation 34

of this Annex and an entry shall be made in the Oil Record Book Part II referred to in

regulation 36 of this Annex.

MEPC 52/24/Add.2

ANNEX 2


4 In the case of crude oil tankers, the additional ballast permitted in paragraph 3 of this

regulation shall be carried in cargo tanks only if such tanks have been crude oil washed in

accordance with regulation 35 of this Annex before departure from an oil unloading port or

terminal.

5 Notwithstanding the provisions of paragraph 2 of this regulation the segregated ballast

conditions for oil tankers less than 150 metres in length shall be to the satisfaction of the

Administration.

Crude oil tankers of 40,000 tonnes deadweight and above delivered on or before 1 June 1982

6 Subject to the provisions of paragraph 7 of this regulation every crude oil tanker

of 40,000 tonnes deadweight and above delivered on or before 1 June 1982, as defined in

regulation 1.28.3, shall be provided with segregated ballast tanks and shall comply with the

requirements of paragraphs 2 and 3 of this regulation.

7 Crude oil tankers referred to in paragraph 6 of this regulation may, in lieu of being

provided with segregated tanks operate with a cargo tank cleaning procedure using crude oil

washing in accordance with regulation 33 and 35 of this Annex unless the crude oil tanker is

intended to carry crude oil which is not suitable for crude oil washing.

Product carriers of 40,000 tonnes deadweight and above delivered on or before 1 June 1982

8 Every product carrier of 40,000 tonnes deadweight and above delivered on or before

1 June 1982, as defined in regulation 1.28.3, shall be provided with segregated ballast tanks and

shall comply with the requirements of paragraphs 2 and 3 of this regulation, or alternatively

operate with dedicated clean ballast tanks in accordance with the following provisions:

.1 The product carrier shall have adequate tank capacity, dedicated solely to the

carriage of clean ballast as defined in regulation 1.17 of this Annex, to meet the

requirements of paragraphs 2 and 3 of this regulation.

.2 The arrangements and operational procedures for dedicated clean ballast tanks

shall comply with the requirements established by the Administration. Such

requirements shall contain at least all the provisions of the revised Specifications

for Oil Tankers with Dedicated Clean Ballast Tanks adopted by the Organization

by resolution A.495(XII).

.3 The product carrier shall be equipped with an oil content meter, approved by the

Administration on the basis of specifications recommended by the Organization,

to enable supervision of the oil content in ballast water being discharged.*

* For oil content meters installed on oil tankers built prior to 2 October 1986, refer to the Recommendation

on international performance and test specifications for oily-water separating equipment and oil content

meters adopted by the Organization by resolution A.393(X). For oil content meters as part of discharge

monitoring and control systems installed on oil tankers built on or after 2 October 1986, refer to the

Guidelines and specifications for oil discharge monitoring and control systems for oil tankers adopted by

the Organization by resolution A.586(14). For oil content meters installed on oil tankers the keels of which

are laid, or which are at a similar stage of construction, on or after 1 January 2005, refer to the Revised

Guidelines and specifications adopted by the Organization by resolution MEPC.108(49).

MEPC 52/24/Add.2

ANNEX 2


.4 Every product carrier operating with dedicated clean ballast tanks shall be

provided with a Dedicated Clean Ballast Tank Operation Manual† detailing the

system and specifying operational procedures. Such a Manual shall be to the

satisfaction of the Administration and shall contain all the information set out in

the Specifications referred to in subparagraph 8.2 of this regulation. If an

alteration affecting the dedicated clean ballast tank system is made, the Operation

Manual shall be revised accordingly.

An oil tanker qualified as a segregated ballast oil tanker

9 Any oil tanker which is not required to be provided with segregated ballast tanks in

accordance with paragraphs 1, 6 or 8 of this regulation may, however be qualified as a segregated

ballast tanker, provided that it complies with the requirements of paragraphs 2 and 3 or 5 as

appropriate, of this regulation.

Oil tankers delivered on or before 1 June 1982 having special ballast arrangements

10 Oil tankers delivered on or before 1 June 1982, as defined in regulation 1.28.3, having

special ballast arrangements.

.1 Where an oil tanker delivered on or before 1 June 1982, as defined in

regulation 1.28.3, is so constructed or operates in such a manner that it complies at

all times with the draught and trim requirements set out in paragraph 2 of this

regulation without recourse to the use of ballast water, it shall be deemed to

comply with the segregated ballast tank requirements referred to in paragraph 6 of

this regulation, provided that all of the following conditions are complied with:

.1 operational procedures and ballast arrangements are approved by the

Administration;

.2 agreement is reached between the Administration and the Governments of

the port States Parties to the present convention concerned when the

draught and trim requirements are achieved through an operational

procedure; and

.3 the International Oil Pollution Prevention Certificate is endorsed to the

effect that the oil tanker is operating with special ballast arrangements.

.2 In no case shall ballast water be carried in oil tanks except on those rare voyages

when weather conditions are so severe that, in the opinion of the master, it is

necessary to carry additional ballast water in cargo tanks for the safety of the ship.

Such additional ballast water shall be processed and discharged in compliance

with regulation 34 of this Annex and in accordance with the requirements of

regulations 29, 31 and 32 of this Annex, and entry shall be made in the Oil Record

Book referred to in regulation 36 of this Annex.

.3 An Administration which has endorsed a Certificate in accordance with

subparagraph 10.1.3 of this regulation shall communicate to the Organization the

particulars thereof for circulation to the Parties to the present Convention.

† See resolution A.495(XII) for the standard format of the Manual.

MEPC 52/24/Add.2

ANNEX 2


Oil tankers of 70,000 tonnes deadweight and above delivered after 31 December 1979

11 Oil tankers of 70,000 tonnes deadweight and above delivered after 31 December 1979, as

defined in regulation 1.28.2, shall be provided with segregated ballast tanks and shall comply

with paragraphs 2, 3 and 4 or paragraph 5 as appropriate of this regulation.

Protective location of segregated ballast

12 Protective location of segregated ballast spaces.

In every crude oil tanker of 20,000 tonnes deadweight and above and every product carrier of

30,000 tonnes deadweight and above delivered after 1 June 1982, as defined in regulation 1.28.4,

except those tankers that meet regulation 19, the segregated ballast tanks required to provide the

capacity to comply with the requirements of paragraph 2 of this regulation, which are located

within the cargo tank length, shall be arranged in accordance with the requirements of

paragraphs 13, 14 and 15 of this regulation to provide a measure of protection against oil outflow

in the event of grounding or collision.

13 Segregated ballast tanks and spaces other than oil tanks within the cargo tanks length (Lt)

shall be so arranged as to comply with the following requirement:

�PAc + �PAs > J[Lt(B + 2D)]

where: PAc = the side shell area in square metres for each segregated ballast tank or

space other than an oil tank based on projected moulded dimensions,

PAs = the bottom shell area in square metres for each such tank or space based

on projected moulded dimensions,

Lt = length in metres between the forward and after extremities of the cargo

tanks,

B = maximum breadth of the ship in metres as defined in regulation 1.22 of

this Annex,

D = moulded depth in metres measured vertically from the top of the keel to

the top of the freeboard deck beam at side amidships. In ships having

rounded gunwales, the moulded depth shall be measured to the point of

intersection of the moulded lines of the deck and side shell plating, the

lines extending as though the gunwale were of angular design

J = 0.45 for oil tankers of 20,000 tonnes deadweight, 0.30 for oil tankers of

200,000 tonnes deadweight and above, subject to the provisions of

paragraph 14 of this regulation.

For intermediate values of deadweight the value of J shall be determined

by linear interpolation.

Whenever symbols given in this paragraph appear in this regulation, they have the

meaning as defined in this paragraph.

MEPC 52/24/Add.2

ANNEX 2


14 For tankers of 200,000 tonnes deadweight and above the value of J may be reduced as

follows:

or 0.2 whichever is greater

where: a = 0.25 for oil tankers of 200,000 tonnes deadweight,

a = 0.40 for oil tankers of 300,000 tonnes deadweight,

a = 0.50 for oil tankers of 420,000 tonnes deadweight and above.

For intermediate values of deadweight the value of a shall be determined by linear

interpolation.

Oc = as defined in regulation 25.1.1 of this Annex,

Os = as defined in regulation 25.1.2 of this Annex,

OA = the allowable oil outflow as required by regulation 26.2 of this Annex.

15 In the determination of PAc and PAs for segregated ballast tanks and spaces other than oil

tanks the following shall apply:

.1 the minimum width of each wing tank or space either of which extends for the full

depth of the ship's side or from the deck to the top of the double bottom shall be

not less than 2 metres. The width shall be measured inboard from the ship's side

at right angles to the centreline. Where a lesser width is provided the wing tank or

space shall not be taken into account when calculating the protecting area PAc;

and

.2 the minimum vertical depth of each double bottom tank or space shall be B/15 or

2 metres, whichever is the lesser. Where a lesser depth is provided the bottom

tank or space shall not be taken into account when calculating the protecting area

PAs.

The minimum width and depth of wing tanks and double bottom tanks shall be

measured clear of the bilge area and, in the case of minimum width, shall be measured

clear of any rounded gunwale area.

Regulation 19

Double hull and double bottom requirements for oil tankers delivered on or after 6 July 1996

1 This regulation shall apply to oil tankers of 600 tonnes deadweight and above delivered

on or after 6 July 1996, as defined in regulation 1.28.6, as follows:

2 Every oil tanker of 5,000 tonnes deadweight and above shall:

.1 in lieu of paragraphs 12 to 15 of regulation 18, as applicable, comply with the

requirements of paragraph 3 of this regulation unless it is subject to the provisions

of paragraphs 4 and 5 of this regulation; and

��

��

�

��

�O4

O + O - a -J = JA

SCreduced

MEPC 52/24/Add.2

ANNEX 2


.2 comply, if applicable, with the requirements of regulation 28.6.

3 The entire cargo tank length shall be protected by ballast tanks or spaces other than tanks

that carry oil as follows:

.1 Wing tanks or spaces

Wing tanks or spaces shall extend either for the full depth of the ship's side or

from the top of the double bottom to the uppermost deck, disregarding a rounded

gunwale where fitted. They shall be arranged such that the cargo tanks are located

inboard of the moulded line of the side shell plating nowhere less than the distance

w which, as shown in figure 1 is measured at any cross-section at right angles to

the side shell, as specified below:

DW

w = 0.5 + (m), or

20,000

w = 2.0 m, whichever is the lesser.

The minimum value of w = 1.0 m.

.2 Double bottom tanks or spaces

At any cross-section the depth of each double bottom tank or space shall be such

that the distance h between the bottom of the cargo tanks and the moulded line of

the bottom shell plating measured at right angles to the bottom shell plating as

shown in figure 1 is not less than specified below:

h = B/15 (m) or

h = 2.0 m, whichever is the lesser.

The minimum value of h = 1.0 m.

.3 Turn of the bilge area or at locations without a clearly defined turn of the bilge

When the distances h and w are different, the distance w shall have preference at

levels exceeding 1.5h above the baseline as shown in figure 1.

.4 The aggregate capacity of ballast tanks

On crude oil tankers of 20,000 tonnes deadweight and above and product carriers

of 30,000 tonnes deadweight and above, the aggregate capacity of wing tanks,

double bottom tanks, forepeak tanks and after peak tanks shall not be less than the

capacity of segregated ballast tanks necessary to meet the requirements of

regulation 18 of this Annex. Wing tanks or spaces and double bottom tanks used

to meet the requirements of regulation 18 shall be located as uniformly as

practicable along the cargo tank length. Additional segregated ballast capacity

provided for reducing longitudinal hull girder bending stress, trim, etc., may be

located anywhere within the ship.

MEPC 52/24/Add.2

ANNEX 2


.5 Suction wells in cargo tanks

Suction wells in cargo tanks may protrude into the double bottom below the

boundary line defined by the distance h provided that such wells are as small as

practicable and the distance between the well bottom and bottom shell plating is

not less than 0.5h.

.6 Ballast and cargo piping

Ballast piping and other piping such as sounding and vent piping to ballast tanks

shall not pass through cargo tanks. Cargo piping and similar piping to cargo tanks

shall not pass through ballast tanks. Exemptions to this requirement may be

granted for short lengths of piping, provided that they are completely welded or

equivalent.

4 The following applies for double bottom tanks or spaces:

.1 Double bottom tanks or spaces as required by paragraph 3.2 of this regulation may

be dispensed with, provided that the design of the tanker is such that the cargo and

vapour pressure exerted on the bottom shell plating forming a single boundary

between the cargo and the sea does not exceed the external hydrostatic water

pressure, as expressed by the following formula:

f x hc x �c x g + p � dn x �s x g

where:

hc = height of cargo in contract with the bottom shell plating in metres

�c = maximum cargo density in kg/m3

dn = minimum operating draught under any expected loading condition in

metres

�s = density of seawater in kg/m3

p = maximum set pressure above atmospheric pressure (gauge pressure) of

pressure/vacuum valve provided for the cargo tank in Pa

f = safety factor = 1.1

g = standard acceleration of gravity (9.81 m/s2)

.2 Any horizontal partition necessary to fulfil the above requirements shall be

located at a height not less than B/6 or 6 m, whichever is the lesser, but not more

than 0.6D, above the baseline where D is the moulded depth amidships.

.3 The location of wing tanks or spaces shall be as defined in paragraph 3.1 of this

regulation except that, below a level 1.5 h above the baseline where h is as defined

in paragraph 3.2 of this regulation, the cargo tank boundary line may be vertical

down to the bottom plating, as shown in figure 2.

MEPC 52/24/Add.2

ANNEX 2


5 Other methods of design and construction of oil tankers may also be accepted as

alternatives to the requirements prescribed in paragraph 3 of this regulation, provided that such

methods ensure at least the same level of protection against oil pollution in the event of collision

or stranding and are approved in principle by the Marine Environment Protection Committee

based on guidelines developed by the Organization*.

6 Every oil tanker of less than 5,000 tonnes deadweight shall comply with paragraphs 3

and 4 of this regulation, or shall:

.1 at least be fitted with double bottom tanks or spaces having such a depth that the

distance h specified in paragraph 3.2 of this regulation, complies with the

following:

h = B/15 (m)

with a minimum value of h = 0.76 m;

in the turn of the bilge area and at locations without a clearly defined turn of the

bilge, the cargo tank boundary line shall run parallel to the line of the midship flat

bottom as shown in figure 3; and

.2 be provided with cargo tanks so arranged that the capacity of each cargo tank does

not exceed 700 m3 unless wing tanks or spaces are arranged in accordance with

paragraph 3.1 of this regulation, complying with the following:

with a minimum value of w = 0.76 m.

7 Oil shall not be carried in any space extending forward of a collision bulkhead located

in accordance with regulation II-1/11 of the International Convention for the Safety of Life at

Sea, 1974, as amended. An oil tanker that is not required to have a collision bulkhead in

accordance with that regulation shall not carry oil in any space extending forward of the

transverse plane perpendicular to the centreline that is located as if it were a collision bulkhead

located in accordance with that regulation.

8 In approving the design and construction of oil tankers to be built in accordance with the

provisions of this regulation, Administrations shall have due regard to the general safety aspects

including the need for the maintenance and inspections of wing and double bottom tanks or

spaces.

* Refer to the Revised Interim Guidelines for the approval of alternative methods of design and construction

of oil tankers adopted by the Marine Environment Protection Committee of the Organization by

resolution MEPC.110(49).

(m) 20000

2.4DW + 0.4 = w

MEPC 52/24/Add.2

ANNEX 2


base line

base line

base line

Figure 1 - Cargo tank boundary lines for the purpose of paragraph 3



MEPC 52/24/Add.2

ANNEX 2


Regulation 20

Double hull and double bottom requirements for oil tankers delivered before 6 July 1996 1 Unless expressly provided otherwise this regulation shall:

.1 apply to oil tankers of 5,000 tonnes deadweight and above, which are delivered before 6 July 1996, as defined in regulation 1.28.5 of this Annex; and

.2 not apply to oil tankers complying with regulation 19 and regulation 28 in respect

of paragraph 28.6, which are delivered before 6 July 1996, as defined in regulation 1.28.5 of this Annex; and

.3 not apply to oil tankers covered by subparagraph 1 above which comply with

regulation 19.3.1 and 19.3.2 or 19.4 or 19.5 of this Annex, except that the

requirement for minimum distances between the cargo tank boundaries and the

ship side and bottom plating need not be met in all respects. In that event, the side

protection distances shall not be less than those specified in the International Bulk

Chemical Code for type 2 cargo tank location and the bottom protection distances

at centreline shall comply with regulation 18.15.2 of this Annex. 2 For the purpose of this regulation:

.1 “Heavy diesel oil” means diesel oil other than those distillates of which more than 50 per cent by volume distils at a temperature not exceeding 340ºC when tested by the method acceptable to the Organization

1.

.2 “Fuel oil” means heavy distillates or residues from crude oil or blends of such

materials intended for use as a fuel for the production of heat or power of a quality equivalent to the specification acceptable to the Organization

2.

3 For the purpose of this regulation, oil tankers are divided into the following categories:

.1 “Category 1 oil tanker” means an oil tanker of 20,000 tonnes deadweight and above carrying crude oil, fuel oil, heavy diesel oil or lubricating oil as cargo, and of 30,000 tonnes deadweight and above carrying oil other than the above, which does not comply with the requirements for oil tankers delivered after 1 June 1982, as defined in regulation 1.28.4 of this Annex;

.2 “Category 2 oil tanker” means an oil tanker of 20,000 tonnes deadweight and

above carrying crude oil, fuel oil, heavy diesel oil or lubricating oil as cargo, and of 30,000 tonnes deadweight and above carrying oil other than the above, which complies with the requirements for oil tankers delivered after 1 June 1982, as defined in regulation 1.28.4 of this Annex; and

.3 “Category 3 oil tanker” means an oil tanker of 5,000 tonnes deadweight and above

but less than that specified in subparagraph 1 or 2 of this paragraph.

1 Refer to the American Society for Testing and Material’s Standard Test Method (Designation D86).

2 Refer to the American Society for Testing and Material’s Specification for Number Four Fuel Oil

(Designation D396) or heavier.

MEPC 52/24/Add.2

ANNEX 2


4 An oil tanker to which this regulation applies shall comply with the requirements of

paragraphs 2 to 5, 7 and 8 of regulation 19 and regulation 28 in respect of paragraph 28.6 of this

Annex not later than 5 April 2005 or the anniversary of the date of delivery of the ship on the

date or in the year specified in the following table: Category of oil tanker

Date or year

Category 1 5 April 2005 for ships delivered on 5 April 1982 or earlier 2005 for ships delivered after 5 April 1982

Category 2 and Category 3

5 April 2005 for ships delivered on 5 April 1977 or earlier 2005 for ships delivered after 5 April 1977 but before 1 January 1978 2006 for ships delivered in 1978 and 1979 2007 for ships delivered in 1980 and 1981 2008 for ships delivered in 1982 2009 for ships delivered in 1983 2010 for ships delivered in 1984 or later

5 Notwithstanding the provisions of paragraph 4 of this regulation, in the case of a

Category 2 or 3 oil tanker fitted with only double bottoms or double sides not used for the

carriage of oil and extending to the entire cargo tank length or double hull spaces which are not

used for the carriage of oil and extend to the entire cargo tank length, but which does not fulfil

conditions for being exempted from the provisions of paragraph 1.3 of this regulation, the

Administration may allow continued operation of such a ship beyond the date specified in

paragraph 4 of this regulation, provided that:

.1 the ship was in service on 1 July 2001;

.2 the Administration is satisfied by verification of the official records that the ship

complied with the conditions specified above;

.3 the conditions of the ship specified above remain unchanged; and

.4 such continued operation does not go beyond the date on which the ship reaches

25 years after the date of its delivery.

6 A Category 2 or 3 oil tanker of 15 years and over after the date of its delivery shall

comply with the Condition Assessment Scheme adopted by the Marine Environment Protection

Committee by resolution MEPC.94(46), as amended, provided that such amendments shall be

adopted, brought into force and take effect in accordance with the provisions of article 16 of the

present Convention relating to amendment procedures applicable to an appendix to an Annex.

7 The Administration may allow continued operation of a Category 2 or 3 oil tanker beyond

the date specified in paragraph 4 of this regulation, if satisfactory results of the Condition

Assessment Scheme warrant that, in the opinion of the Administration, the ship is fit to continue

such operation, provided that the operation shall not go beyond the anniversary of the date of

delivery of the ship in 2015 or the date on which the ship reaches 25 years after the date of its

delivery, whichever is the earlier date.

MEPC 52/24/Add.2

ANNEX 2


8 .1 The Administration of a Party to the present Convention which allows the

application of paragraph 5 of this regulation, or allows, suspends, withdraws or

declines the application of paragraph 7 of this regulation, to a ship entitled to fly

its flag shall forthwith communicate to the Organization for circulation to the

Parties to the present Convention particulars thereof, for their information and

appropriate action, if any.

.2 A Party to the present Convention shall be entitled to deny entry into the ports or

offshore terminals under its jurisdiction of oil tankers operating in accordance

with the provisions of:

.1 paragraph 5 of this regulation beyond the anniversary of the date of

delivery of the ship in 2015; or

.2 paragraph 7 of this regulation.

In such cases, that Party shall communicate to the Organization for circulation to

the Parties to the present Convention particulars thereof for their information.

Regulation 21

Prevention of oil pollution from oil tankers carrying heavy grade oil as cargo

1 This regulation shall:

.1 apply to oil tankers of 600 tonnes deadweight and above carrying heavy grade oil

as cargo regardless of the date of delivery; and

.2 not apply to oil tankers covered by subparagraph 1 above which comply with

regulations 19.3.1 and 19.3.2 or 19.4 or 19.5 of this Annex, except that the

requirement for minimum distances between the cargo tank boundaries and the

ship side and bottom plating need not be met in all respects. In that event, the side

protection distances shall not be less than those specified in the International Bulk

Chemical Code for type 2 cargo tank location and the bottom protection distances

at centreline shall comply with regulation 18.15.2 of this Annex.

2 For the purpose of this regulation “heavy grade oil” means any of the following:

.1 crude oils having a density at 15ºC higher than 900 kg/m3;

.2 fuel oils having either a density at 15oC higher than 900 kg/m

3 or a kinematic

viscosity at 50oC higher than 180 mm

2/s; or

.3 bitumen, tar and their emulsions.

3 An oil tanker to which this regulation applies shall comply with the provisions of

paragraphs 4 to 8 of this regulation in addition to complying with the applicable provisions of

regulation 20.

MEPC 52/24/Add.2

ANNEX 2


4 Subject to the provisions of paragraphs 5, 6 and 7 of this regulation, an oil tanker to

which this regulation applies shall:

.1 if 5,000 tonnes deadweight and above, comply with the requirements of

regulation 19 of this Annex not later than 5 April 2005; or

.2 if 600 tonnes deadweight and above but less than 5,000 tonnes deadweight, be

fitted with both double bottom tanks or spaces complying with the provisions of

regulation 19.6.1 of this Annex, and wing tanks or spaces arranged in accordance

with regulation 19.3.1 and complying with the requirement for distance w as

referred to in regulation 19.6.2, not later than the anniversary of the date of

delivery of the ship in the year 2008.

5 In the case of an oil tanker of 5,000 tonnes deadweight and above, carrying heavy grade

oil as cargo fitted with only double bottoms or double sides not used for the carriage of oil and

extending to the entire cargo tank length or double hull spaces which are not used for the

carriage of oil and extend to the entire cargo tank length, but which does not fulfil conditions for

being exempted from the provisions of paragraph 1.2 of this regulation, the Administration may

allow continued operation of such a ship beyond the date specified in paragraph 4 of this

regulation, provided that:

.1 the ship was in service on 4 December 2003;

.2 the Administration is satisfied by verification of the official records that the ship

complied with the conditions specified above;

.3 the conditions of the ship specified above remain unchanged; and

.4 such continued operation does not go beyond the date on which the ship reaches

25 years after the date of its delivery.

6 .1 The Administration may allow continued operation of an oil tanker of 5,000

tonnes deadweight and above, carrying crude oil having a density at 15ºC higher

than 900 kg/m3 but lower than 945 kg/m

3, beyond the date specified in

paragraph 4.1 of this regulation, if satisfactory results of the Condition

Assessment Scheme referred to in regulation 20.6 warrant that, in the opinion of

the Administration, the ship is fit to continue such operation, having regard to the

size, age, operational area and structural conditions of the ship and provided that

the operation shall not go beyond the date on which the ship reaches 25 years after

the date of its delivery.

.2 The Administration may allow continued operation of an oil tanker of 600 tonnes

deadweight and above but less than 5,000 tonnes deadweight, carrying heavy

grade oil as cargo, beyond the date specified in paragraph 4.2 of this regulation, if,

in the opinion of the Administration, the ship is fit to continue such operation,

having regard to the size, age, operational area and structural conditions of the

ship, provided that the operation shall not go beyond the date on which the ship

reaches 25 years after the date of its delivery.

MEPC 52/24/Add.2

ANNEX 2


7 The Administration of a Party to the present Convention may exempt an oil tanker

of 600 tonnes deadweight and above carrying heavy grade oil as cargo from the provisions of this

regulation if the oil tanker:

.1 either is engaged in voyages exclusively within an area under its jurisdiction, or

operates as a floating storage unit of heavy grade oil located within an area under

its jurisdiction; or

.2 either is engaged in voyages exclusively within an area under the jurisdiction of

another Party, or operates as a floating storage unit of heavy grade oil located

within an area under the jurisdiction of another Party, provided that the Party

within whose jurisdiction the oil tanker will be operating agrees to the operation

of the oil tanker within an area under its jurisdiction.

8 .1 The Administration of a Party to the present Convention which allows, suspends,

withdraws or declines the application of paragraph 5, 6 or 7 of this regulation to a

ship entitled to fly its flag shall forthwith communicate to the Organization for

circulation to the Parties to the present Convention particulars thereof, for their

information and appropriate action, if any.

.2 Subject to the provisions of international law, a Party to the present Convention

shall be entitled to deny entry of oil tankers operating in accordance with the

provisions of paragraph 5 or 6 of this regulation into the ports or offshore

terminals under its jurisdiction, or deny ship-to-ship transfer of heavy grade oil in

areas under its jurisdiction except when this is necessary for the purpose of

securing the safety of a ship or saving life at sea. In such cases, that Party shall

communicate to the Organization for circulation to the Parties to the present

Convention particulars thereof for their information.

Regulation 22

Pump-room bottom protection

1 This regulation applies to oil tankers of 5,000 tonnes deadweight and above constructed

on or after 1 January 2007.

2 The pump-room shall be provided with a double bottom such that at any cross-section the

depth of each double bottom tank or space shall be such that the distance h between the bottom of

the pump-room and the ship’s base line measured at right angles to the ship’s base line is not less

than specified below:

h = B/15(m) or

h = 2 m, whichever is the lesser.

The minimum value of h = 1 m.

3 In case of pump rooms whose bottom plate is located above the base line by at least the

minimum height required in paragraph 2 above (e.g. gondola stern designs), there will be no need

for a double bottom construction in way of the pump-room.

4 Ballast pumps shall be provided with suitable arrangements to ensure efficient suction

from double bottom tanks.

MEPC 52/24/Add.2

ANNEX 2


5 Notwithstanding the provisions of paragraphs 2 and 3 above, where the flooding of the

pump-room would not render the ballast or cargo pumping system inoperative, a double bottom

need not be fitted.

Regulation 23

Accidental oil outflow performance

1 This regulation shall apply to oil tankers delivered on or after 1 January 2010, as defined

in regulation 1.28.8.

2 For the purpose of this regulation, the following definitions shall apply:

.1 "Load line draught (dS)" is the vertical distance, in metres, from the moulded

baseline at mid-length to the waterline corresponding to the summer freeboard to

be assigned to the ship. Calculations pertaining to this regulation should be based

on draught dS, notwithstanding assigned draughts that may exceed dS, such as the

tropical loadline.

.2 "Waterline (dB)" is the vertical distance, in metres, from the moulded baseline at

mid-length to the waterline corresponding to 30% of the depth DS.

.3 "Breadth (BS)" is the greatest moulded breadth of the ship, in metres, at or below

the deepest load line dS.

.4 "Breadth (BB)" is the greatest moulded breadth of the ship, in metres, at or below

the waterline dB.

.5 "Depth (DS)" is the moulded depth, in metres, measured at mid-length to the upper

deck at side.

.6 "Length (L)" and "deadweight (DW)" are as defined in regulations 1.19 and 1.23,

respectively.

3 To provide adequate protection against oil pollution in the event of collision or stranding

the following shall be complied with:

.1 for oil tankers of 5,000 tonnes deadweight (DWT) and above, the mean oil

outflow parameter shall be as follows:

OM � 0.015 for C � 200,000 m3

OM � 0.012 + (0.003/200,000) (400,000-C) for 200,000 m3 < C < 400,000 m

3

OM � 0.012 for C � 400,000 m3

for combination carriers between 5,000 tonnes deadweight (DWT) and

200,000 m3 capacity, the mean oil outflow parameter may be applied, provided

calculations are submitted to the satisfaction of the Administration, demonstrating

that after accounting for its increased structural strength, the combination carrier

has at least equivalent oil out flow performance to a standard double hull tanker of

the same size having a OM < = 0.015.

MEPC 52/24/Add.2

ANNEX 2


OM � 0.021 for C � 100,000 m3

OM � 0.015 + (0.006/100,000) (200,000-C) for 100,000 m3 < C � 200,000 m

3

where:

OM = mean oil outflow parameter.

C = total volume of cargo oil, in m3, at 98% tank filling

.2 for oil tankers of less than 5,000 tonnes deadweight (DWT) :

The length of each cargo tank shall not exceed 10 m or one of the following

values, whichever is the greater:

.1 where no longitudinal bulkhead is provided inside the cargo tanks:

(0.5 Bbi

+ 0.1)L but not to exceed 0.2L

.2 where a centreline longitudinal bulkhead is provided inside the cargo

tanks:

(0.25Bbi

+ 0.15)L

.3 where two or more longitudinal bulkheads are provided inside the cargo

tanks:

.1 for wing cargo tanks: 0.2L

.2 for centre cargo tanks:

.1 if Bbi

� 0.2L : 0.2L

.2 if Bbi

is < 0.2:

- where no centreline longitudinal bulkhead is provided:

(0.5 Bbi

+ 0.1) L

- where a centreline longitudinal bulkhead is provided:

(0.25Bbi

+ 0.15) L

.4 bi is the minimum distance from the ship's side to the outer longitudinal

bulkhead of the tank in question measured inboard at right angles to the

centreline at the level corresponding to the assigned summer freeboard.

MEPC 52/24/Add.2

ANNEX 2


4 The following general assumptions shall apply when calculating the mean oil outflow

parameter:

.1 The cargo block length extends between the forward and aft extremities of all

tanks arranged for the carriage of cargo oil, including slop tanks.

.2 Where this regulation refers to cargo tanks, it shall be understood to include all

cargo tanks, slop tanks and fuel tanks located within the cargo block length.

.3 The ship shall be assumed loaded to the load line draught dS without trim or heel.

.4 All cargo oil tanks shall be assumed loaded to 98% of their volumetric capacity.

The nominal density of the cargo oil (� n) shall be calculated as follows:

� n = 1000 (DWT)/C (kg/m3)

.5 For the purposes of these outflow calculations, the permeability of each space

within the cargo block, including cargo tanks, ballast tanks and other

non-oil spaces shall be taken as 0.99, unless proven otherwise.

.6 Suction wells may be neglected in the determination of tank location provided that

such wells are as small as practicable and the distance between the well bottom

and bottom shell plating is not less than 0.5h, where h is the height as defined in

regulation 19.3.2.

5 The following assumptions shall be used when combining the oil outflow parameters:

.1 The mean oil outflow shall be calculated independently for side damage and for

bottom damage and then combined into the non-dimensional oil outflow

parameter OM, as follows:

OM = (0.4 OMS + 0.6 OMB ) / C

where:

OMS = mean outflow for side damage, in m3; and

OMB = mean outflow for bottom damage, in m3.

.2 For bottom damage, independent calculations for mean outflow shall be done

for 0 m and minus 2.5 m tide conditions, and then combined as follows:

OMB = 0.7 OMB(0) + 0.3 OMB(2.5)

where:

OMB(0) = mean outflow for 0 m tide condition; and

OMB(2.5) = mean outflow for minus 2.5 m tide condition, in m3.

6 The mean outflow for side damage OMS shall be calculated as follows:

OMS = C3�n

i

Ps(i) Os(i) (m3)

MEPC 52/24/Add.2

ANNEX 2


where:

i = represents each cargo tank under consideration;

n = total number of cargo tanks;

PS(i) = the probability of penetrating cargo tank i from side damage,

calculated in accordance with paragraph 8.1 of this regulation;

OS(i) = the outflow, in m3, from side damage to cargo tank i, which is assumed

equal to the total volume in cargo tank i at 98% filling, unless it is

proven through the application of the Guidelines referred to in

regulation 19.5 that any significant cargo volume will be retained; and

C3 = 0.77 for ships having two longitudinal bulkheads inside the cargo

tanks, provided these bulkheads are continuous over the cargo block

and Ps(i) is developed in accordance with this regulation. C3 equals 1.0

for all other ships or when Ps(i) is developed in accordance with

paragraph 10 of this regulation.

7 The mean outflow for bottom damage shall be calculated for each tidal condition as

follows:

.1 OMB(0) = �n

i

PB(i) OB(i) CDB(i) (m3)

where:

i = represents each cargo tank under consideration;

n = the total number of cargo tanks;

PB(i) = the probability of penetrating cargo tank i from bottom damage,

calculated in accordance with, paragraph 9.1 of this regulation;

OB(i) = the outflow from cargo tank i, in m3, calculated in accordance

with paragraph 7.3 of this regulation; and

CDB(i) = factor to account for oil capture as defined in paragraph 7.4 of

this regulation

.2 OMB(2.5) = �n

i

PB(i) OB(i) CDB(i)) (m3)

where:

i,n, PB(i) and CDB(i) = as defined in subparagraph .1 above;

OB(i) = the outflow from cargo tank i, in m³, after tidal change

.3 The oil outflow OB(i) for each cargo oil tank shall be calculated based on pressure

balance principles, in accordance with the following assumptions:

.1 The ship shall be assumed stranded with zero trim and heel, with the

stranded draught prior to tidal change equal to the load line draught ds.

MEPC 52/24/Add.2

ANNEX 2


.2 The cargo level after damage shall be calculated as follows:

hc = {(ds + tc - Zl) (� s) - (1000 p) / g }/� n

where:

hc = the height of the cargo oil above Zl, in metres;

tc = the tidal change, in m. Reductions in tide shall be

expressed as negative values;

Zl = the height of the lowest point in the cargo tank above

baseline, in m;

� s = density of seawater, to be taken as 1,025 kg/m3;

p = if an inert gas system is fitted, the normal overpressure, in

kPa, to be taken as not less than 5 kPa; if an inert gas

system is not fitted, the overpressure may be taken as 0;

g = the acceleration of gravity, to be taken as 9.81 m/s2; and

� n = nominal density of cargo oil, calculated in accordance with

paragraph 4.4 of this regulation.

.3 For cargo tanks bounded by the bottom shell, unless proven otherwise,

oil outflow OB(i) shall be taken not less than 1% of the total volume of

cargo oil loaded in cargo tank i, to account for initial exchange losses and

dynamic effects due to current and waves.

.4 In the case of bottom damage, a portion from the outflow from a cargo tank may

be captured by non-oil compartments. This effect is approximated by application

of the factor CDB(i) for each tank, which shall be taken as follows:

CDB(i) = 0.6 for cargo tanks bounded from below by non-oil compartments;

CDB(i) = 1.0 for cargo tanks bounded by the bottom shell.

8 The probability PS of breaching a compartment from side damage shall be calculated as

follows:

.1 PS = PSL PSV PST

where:

PSL =1 - PSf - PSa = probability the damage will extend into the

longitudinal zone bounded by Xa and Xf;

PSV = 1 - PSu - PS1 = probability the damage will extend into the vertical

zone bounded by Zl and Zu; and

PST = 1 - PSy = probability the damage will extend transversely

beyond the boundary defined by y.

MEPC 52/24/Add.2

ANNEX 2


.2 PSa, PSf, PSl, PSu and PSy shall be determined by linear interpolation from the table

of probabilities for side damage provided in paragraph 8.3 of this regulation,

where:

PSa = the probability the damage will lie entirely aft of location Xa/L;

PSf = the probability the damage will lie entirely forward of location Xf/L;

PSl = the probability the damage will lie entirely below the tank;

PSu = the probability the damage will lie entirely above the tank; and

PSy = the probability the damage will lie entirely outboard of the tank.

Compartment boundaries Xa, Xf, Zl, Zu and y shall be developed as follows:

Xa = the longitudinal distance from the aft terminal of L to the aftmost

point on the compartment being considered, in metres;

Xf = the longitudinal distance from the aft terminal of L to the foremost

point on the compartment being considered, in metres;

Zl = the vertical distance from the moulded baseline to the lowest point on

the compartment being considered, in metres;

Zu = the vertical distance from the moulded baseline to the highest point

on the compartment being considered, in metres. Zu is not to be

taken greater than Ds; and

y = the minimum horizontal distance measured at right angles to the

centreline between the compartment under consideration and the side

shell in metres; *

* For symmetrical tank arrangements, damages are considered for one side of the ship only, in which case all

“y” dimensions are to be measured from that same side. For asymmetrical arrangements refer to the

Explanatory Notes on matters related to the accidental oil outflow performance, adopted by the

Organization by resolution MEPC.122(52).

MEPC 52/24/Add.2

ANNEX 2


.3 Table of probabilities for side damage

Xa /L PSa Xf /L PSf Zl /DS PSl Zu /DS PSu

0.00 0.000 0.00 0.967 0.00 0.000 0.00 0.968

0.05 0.023 0.05 0.917 0.05 0.000 0.05 0.952

0.10 0.068 0.10 0.867 0.10 0.001 0.10 0.931

0.15 0.117 0.15 0.817 0.15 0.003 0.15 0.905

0.20 0.167 0.20 0.767 0.20 0.007 0.20 0.873

0.25 0.217 0.25 0.717 0.25 0.013 0.25 0.836

0.30 0.267 0.30 0.667 0.30 0.021 0.30 0.789

0.35 0.317 0.35 0.617 0.35 0.034 0.35 0.733

0.40 0.367 0.40 0.567 0.40 0.055 0.40 0.670

0.45 0.417 0.45 0.517 0.45 0.085 0.45 0.599

0.50 0.467 0.50 0.467 0.50 0.123 0.50 0.525

0.55 0.517 0.55 0.417 0.55 0.172 0.55 0.452

0.60 0.567 0.60 0.367 0.60 0.226 0.60 0.383

0.65 0.617 0.65 0.317 0.65 0.285 0.65 0.317

0.70 0.667 0.70 0.267 0.70 0.347 0.70 0.255

0.75 0.717 0.75 0.217 0.75 0.413 0.75 0.197

0.80 0.767 0.80 0.167 0.80 0.482 0.80 0.143

0.85 0.817 0.85 0.117 0.85 0.553 0.85 0.092

0.90 0.867 0.90 0.068 0.90 0.626 0.90 0.046

0.95 0.917 0.95 0.023 0.95 0.700 0.95 0.013

1.00 0.967 1.00 0.000 1.00 0.775 1.00 0.000

PSy shall be calculated as follows:

PSy = (24.96 -199.6 y/BS) (y/BS) for y/BS � 0.05

PSy = 0.749 + {5 -44.4 (y/BS - 0.05)} (y/BS - 0.05) for 0.05 < y/BS < 0.1

PSy = 0.888 + 0.56 (y/BS - 0.1) for y/BS � 0.1

PSy shall not be taken greater than 1.

9 The probability PB of breaching a compartment from bottom damage shall be calculated

as follows:

.1 PB = PBL PBT PBV

where:

PBL = 1 - PBf - PBa = probability the damage will extend into the

longitudinal zone bounded by Xa and Xf;

PBT = 1 - PBp - PBs = probability the damage will extend into the

transverse zone bounded by Yp and Ys; and

PBV = 1 - PBz = probability the damage will extend vertically above

the boundary defined by z.

MEPC 52/24/Add.2

ANNEX 2


.2 PBa, PBf, PBp, PBs, and PBz shall be determined by linear interpolation from the

table of probabilities for bottom damage provided in paragraph 9.3 of this

regulation, where:

PBa = the probability the damage will lie entirely aft of location Xa/L;

PBf = the probability the damage will lie entirely forward of

location Xf/L;

PBp = the probability the damage will lie entirely to port of the tank;

PBs = the probability the damage will lie entirely to starboard of the tank;

and

PBz = the probability the damage will lie entirely below the tank.

Compartment boundaries Xa, Xf, Yp, Ys, and z shall be developed as follows:

Xa and Xf are as defined in paragraph 8.2 of this regulation;

Yp = the transverse distance from the port-most point on the

compartment located at or below the waterline dB, to a vertical

plane located BB /2 to starboard of the ship's centreline, in metres;

Ys = the transverse distance from the starboard-most point on the

compartment located at or below the waterline dB, to a vertical

plane located BB /2 to starboard of the ship's centreline, in metres;

and

z = the minimum value of z over the length of the compartment, where,

at any given longitudinal location, z is the vertical distance from

the lower point of the bottom shell at that longitudinal location to

the lower point of the compartment at that longitudinal location,

in metres.

MEPC 52/24/Add.2

ANNEX 2


.3 Table of probabilities for bottom damage

Xa /L PBa Xf /L PBf Yp /BB PBp Ys /BB PBs

0.00 0.000 0.00 0.969 0.00 0.844 0.00 0.000

0.05 0.002 0.05 0.953 0.05 0.794 0.05 0.009

0.10 0.008 0.10 0.936 0.10 0.744 0.10 0.032

0.15 0.017 0.15 0.916 0.15 0.694 0.15 0.063

0.20 0.029 0.20 0.894 0.20 0.644 0.20 0.097

0.25 0.042 0.25 0.870 0.25 0.594 0.25 0.133

0.30 0.058 0.30 0.842 0.30 0.544 0.30 0.171

0.35 0.076 0.35 0.810 0.35 0.494 0.35 0.211

0.40 0.096 0.40 0.775 0.40 0.444 0.40 0.253

0.45 0.119 0.45 0.734 0.45 0.394 0.45 0.297

0.50 0.143 0.50 0.687 0.50 0.344 0.50 0.344

0.55 0.171 0.55 0.630 0.55 0.297 0.55 0.394

0.60 0.203 0.60 0.563 0.60 0.253 0.60 0.444

0.65 0.242 0.65 0.489 0.65 0.211 0.65 0.494

0.70 0.289 0.70 0.413 0.70 0.171 0.70 0.544

0.75 0.344 0.75 0.333 0.75 0.133 0.75 0.594

0.80 0.409 0.80 0.252 0.80 0.097 0.80 0.644

0.85 0.482 0.85 0.170 0.85 0.063 0.85 0.694

0.90 0.565 0.90 0.089 0.90 0.032 0.90 0.744

0.95 0.658 0.95 0.026 0.95 0.009 0.95 0.794

1.00 0.761 1.00 0.000 1.00 0.000 1.00 0.844

PBz shall be calculated as follows:

PBz = (14.5 - 67 z/DS) (z/DS ) for z/DS � 0.1,

PBz = 0.78 + 1.1 (z/DS - 0.1) for z/DS > 0.1.

PBz shall not be taken greater than 1.

10 This regulation uses a simplified probabilistic approach where a summation is carried out

over the contributions to the mean outflow from each cargo tank. For certain designs

such as those characterized by the occurrence of steps/recesses in bulkheads/decks and for

sloping bulkheads and/or a pronounced hull curvature, more rigorous calculations may be

appropriate. In such cases one of the following calculation procedures may be applied:

.1 The probabilities referred to in 8 and 9 above may be calculated with more

precision through application of hypothetical sub-compartments.*

.2 The probabilities referred to in 8 and 9 above may be calculated through direct

application of the probability density functions contained in the Guidelines

referred to in regulation 19.5.

.3 The oil outflow performance may be evaluated in accordance with the method

described in the Guidelines referred to in regulation 19.5.

* Refer to the Explanatory Notes on matters related to the accidental oil outflow performance, adopted by the

Organization by resolution MEPC.122(52).

MEPC 52/24/Add.2

ANNEX 2


11 The following provisions regarding piping arrangements shall apply:

.1 Lines of piping that run through cargo tanks in a position less than 0.30Bs from

the ship's side or less than 0.30Ds from the ship's bottom shall be fitted with

valves or similar closing devices at the point at which they open into any cargo

tank. These valves shall be kept closed at sea at any time when the tanks contain

cargo oil, except that they may be opened only for cargo transfer needed for

essential cargo operations.

.2 Credit for reducing oil outflow through the use of an emergency rapid cargo

transfer system or other system arranged to mitigate oil outflow in the event of an

accident may be taken into account only after the effectiveness and safety aspects

of the system are approved by the Organization. Submittal for approval shall be

made in accordance with the provisions of the Guidelines referred to in

regulation 19.5.

Regulation 24

Damage assumptions

1 For the purpose of calculating hypothetical oil outflow from oil tankers in accordance

with regulations 25 and 26, three dimensions of the extent of damage of a parallelepiped on the

side and bottom of the ship are assumed as follows. In the case of bottom damages two

conditions are set forth to be applied individually to the stated portions of the oil tanker.

.1 Side damage:

1 Longitudinal extent(lc): 1/3 L 2/3

or 14.5 metres,

whichever is less.

2 Transverse extent (tc) (inboard from the ship's side

at right angles to the centreline at the level

corresponding to the assigned summer freeboard):

B/5 or 11.5 metres,

whichever is less

3 Vertical extent (vc): From the base line

upwards without limit

.2 Bottom damage:

For 0.3L from the

forward perpendicular

of the ship

Any other part of the

ship

1 Longitudinal extent (ls): L/10 L/10 or 5 metres,

whichever is less

2 Transverse extent (ts): B/6 or 10 metres,

whichever is less but not

less than 5 metres

5 metres

3 Vertical extent from the

base line (vs):

B/15 or 6 metres,

whichever is less

2 Wherever the symbols given in this regulation appear in this chapter, they have the

meaning as defined in this regulation.

MEPC 52/24/Add.2

ANNEX 2


Regulation 25 Hypothetical outflow of oil

1 The hypothetical outflow of oil in the case of side damage (Oc) and bottom damage (Os)

shall be calculated by the following formulae with respect to compartments breached by damage

to all conceivable locations along the length of the ship to the extent as defined in regulation 24

of this Annex.

.1 For side damages:

Oc = �Wi + � KiCi (I)

.2 For bottom damages:

Os = 1/3 (� ZiWi + � ZiCi) (II)

where: Wi = volume of a wing tank in cubic metres assumed to be breached by the

damage as specified in regulation 24 of this Annex; Wi for a segregated

ballast tank may be taken equal to zero.

Ci = volume of a centre tank in cubic metres assumed to be breached by the

damage as specified in regulation 24 of this Annex; Ci for a segregated

ballast tank may be taken equal to zero.

Ki = 1– bi/tc when bi is equal to or greater than tc, Ki shall be taken equal to

zero.

Zi = 1- hi/vs, when hi is equal to or greater than vs, Zi shall be taken equal to

zero.

bi = width of wing tank in metres under consideration measured inboard from

the ship's side at right angles to the centreline at the level corresponding to

the assigned summer freeboard.

hi = minimum depth of the double bottom in metres under consideration; where

no double bottom is fitted hi shall be taken equal to zero.

Whenever symbols given in this paragraph appear in this chapter, they have the

meaning as defined in this regulation.

2 If a void space or segregated ballast tank of a length less than lc as defined in regulation

24 of this Annex is located between wing oil tanks, Oc in formula (I) may be calculated on the

basis of volume Wi being the actual volume of one such tank (where they are of equal capacity)

or the smaller of the two tanks (if they differ in capacity) adjacent to such space, multiplied by Si

as defined below and taking for all other wing tanks involved in such collision the value of the

actual full volume.

Si = 1 - li/lc

where li = length in metres of void space or segregated ballast tank under

consideration.

MEPC 52/24/Add.2

ANNEX 2


3 .1 Credit shall only be given in respect of double bottom tanks which are either

empty or carrying clean water when cargo is carried in the tanks above.

.2 Where the double bottom does not extend for the full length and width of the tank

involved, the double bottom is considered non-existent and the volume of the

tanks above the area of the bottom damage shall be included in formula (II) even

if the tank is not considered breached because of the installation of such a partial

double bottom.

.3 Suction wells may be neglected in the determination of the value hi provided such

wells are not excessive in area and extend below the tank for a minimum distance

and in no case more than half the height of the double bottom. If the depth of

such a well exceeds half the height of the double bottom, hi shall be taken equal to

the double bottom height minus the well height.

Piping serving such wells if installed within the double bottom shall be fitted with

valves or other closing arrangements located at the point of connection to the tank

served to prevent oil outflow in the event of damage to the piping. Such piping

shall be installed as high from the bottom shell as possible. These valves shall be

kept closed at sea at any time when the tank contains oil cargo, except that they

may be opened only for cargo transfer needed for the purpose of trimming of the

ship.

4 In these case where bottom damage simultaneously involves four centre tanks, the value

of Os may be calculated according to the formula:

Os = 1/4 (� ZiWi + � ZiCi) (III)

5 An Administration may credit as reducing oil outflow in case of bottom damage, an

installed cargo transfer system having an emergency high suction in each cargo oil tank, capable

of transferring from a breached tank or tanks to segregated ballast tanks or to available cargo

tankage if it can be assured that such tanks will have sufficient ullage. Credit for such a system

would be governed by ability to transfer in two hours of operation oil equal to one half of the

largest of the breached tanks involved and by availability of equivalent receiving capacity in

ballast or cargo tanks. The credit shall be confined to permitting calculation of Os according to

formula (III). The pipes for such suctions shall be installed at least at a height not less than the

vertical extent of the bottom damage vs. The Administration shall supply the Organization with

the information concerning the arrangements accepted by it, for circulation to other Parties to the

Convention.

6 This regulation does not apply to oil tankers delivered on or after 1 January 2010, as

defined in regulation 1.28.8.

Regulation 26

Limitations of size and arrangement of cargo tanks

1 Except as provided in paragraph 7 below:

1. every oil tanker of 150 gross tonnage and above delivered after

31 December 1979, as defined in regulation 1.28.2, and

MEPC 52/24/Add.2

ANNEX 2


2. every oil tanker of 150 gross tonnage and above delivered on or before

31 December 1979, as defined in regulation 1.28.1, which falls into either of the

following categories :

.1 a tanker, the delivery of which is after 1 January 1977, or

.2 a tanker to which both the following conditions apply:

.1 delivery is not later than 1 January 1977; and

.2 the building contract is placed after 1 January 1974, or in cases

where no building contract has previously been placed, the keel

is laid or the tanker is at a similar stage of construction after

30 June 1974.

shall comply with the provisions of this regulation.

2 Cargo tanks of oil tankers shall be of such size and arrangements that the hypothetical

outflow Oc or Os calculated in accordance with the provisions of regulation 25 of this Annex

anywhere in the length of the ship does not exceed 30,000 cubic metres or 400 , whichever

is the greater, but subject to a maximum of 40,000 cubic metres.

3 The volume of any one wing cargo oil tank of an oil tanker shall not exceed 75 per cent of

the limits of the hypothetical oil outflow referred to in paragraph 2 of this regulation. The

volume of any one centre cargo oil tank shall not exceed 50,000 cubic metres. However, in

segregated ballast oil tankers as defined in regulation 18 of this Annex, the permitted volume of a

wing cargo oil tank situated between two segregated ballast tanks, each exceeding lc in length,

may be increased to the maximum limit of hypothetical oil outflow provided that the width of the

wing tanks exceeds tc.

4 The length of each cargo tank shall not exceed 10 m or one of the following values,

whichever is the greater:

.1 where no longitudinal bulkhead is provided inside the cargo tanks:

(0.5 Bbi

+ 0.1)L but not to exceed 0.2L

.2 where a centreline longitudinal bulkhead is provided inside the cargo tanks:

(0.25Bbi

+ 0.15)L

.3 where two or more longitudinal bulkheads are provided inside the cargo tanks:

.1 for wing cargo tanks: 0.2L

.2 for centre cargo tanks:

3 DW

MEPC 52/24/Add.2

ANNEX 2


.1 if Bbi

is equal to or greater than one fifth: 0.2L

.2 if Bbi

is less than one fifth:

- where no centreline longitudinal bulkhead is provided:

(0.5 Bbi

+ 0.1) L

- where a centreline longitudinal bulkhead is provided:

(0.25Bbi

+ 0.15) L

.4 bi is the minimum distance from the ship's side to the outer longitudinal bulkhead

of the tank in question measured inboard at right angles to the centreline at the

level corresponding to the assigned summer freeboard.

5 In order not to exceed the volume limits established by paragraphs 2, 3 and 4 of this

regulation and irrespective of the accepted type of cargo transfer system installed, when such

system interconnects two or more cargo tanks, valves or other similar closing devices shall be

provided for separating the tanks from each other. These valves or devices shall be closed when

the tanker is at sea.

6 Lines of piping which run through cargo tanks in a position less than tc from the ship's

side or less than vc from the ship's bottom shall be fitted with valves or similar closing devices at

the point at which they open into any cargo tank. These valves shall be kept closed at sea at any

time when the tanks contain cargo oil, except that they may be opened only for cargo transfer

needed for the purpose of trimming of the ship.

7 This regulation does not apply to oil tankers delivered on or after 1 January 2010, as

defined in regulation 1.28.8.

Regulation 27 Intact stability

1 Every oil tanker of 5,000 tonnes deadweight and above delivered on or after

1 February 2002, as defined in regulation 1.28.7, shall comply with the intact stability criteria

specified in paragraphs 1.1 and 1.2 of this regulation, as appropriate, for any operating draught

under the worst possible conditions of cargo and ballast loading, consistent with good operational

practice, including intermediate stages of liquid transfer operations. Under all conditions the

ballast tanks shall be assumed slack.

.1 In port, the initial metacentric height GMo, corrected for the free surface

measured at 0° heel, shall be not less than 0.15 m;

.2 At sea, the following criteria shall be applicable:

MEPC 52/24/Add.2

ANNEX 2


.1 the area under the righting lever curve (GZ curve) shall be not less than

0.055 m.rad up to � = 30º angle of heel and not less than 0.09 m.rad up to

� = 40º or other angle of flooding �f * if this angle is less than 40º

Additionally, the area under the righting lever curve (GZ curve) between

the angles of heel of 30º and 40º or between 30º and �f, if this angle is less

than 40º, shall be not less than 0.03 m.rad;

.2 the righting lever GZ shall be at least 0.20 m at an angle of heel equal to or

greater than 30º;

.3 the maximum righting arm shall occur at an angle of heel preferably

exceeding 30º but not less than 25º; and

.4 the initial metacentric height GMo, corrected for free surface measured

at 0º heel, shall be not less than 0.15 m.

2 The requirements of paragraph 1 of this regulation shall be met through design measures.

For combination carriers simple supplementary operational procedures may be allowed.

3 Simple supplementary operational procedures for liquid transfer operations referred to in

paragraph 2 of this regulation shall mean written procedures made available to the master which:

.1 are approved by the Administration;

.2 indicate those cargo and ballast tanks which may, under any specific condition of

liquid transfer and possible range of cargo densities, be slack and still allow the

stability criteria to be met. The slack tanks may vary during the liquid transfer

operations and be of any combination provided they satisfy the criteria;

.3 will be readily understandable to the officer-in-charge of liquid transfer

operations;

.4 provide for planned sequences of cargo/ballast transfer operations;

.5 allow comparisons of attained and required stability using stability performance

criteria in graphical or tabular form;

.6 require no extensive mathematical calculations by the officer-in-charge;

.7 provide for corrective actions to be taken by the officer-in-charge in case of

departure from recommended values and in case of emergency situations; and

.8 are prominently displayed in the approved trim and stability booklet and at the

cargo/ballast transfer control station and in any computer software by which

stability calculations are performed.

* � f is the angle of heel at which openings in the hull superstructures or deckhouses which cannot be closed

weather tight, immerse. In applying this criterion, small openings through which progressive flooding

cannot take place need not be considered as open.

MEPC 52/24/Add.2

ANNEX 2


Regulation 28 Subdivision and damage stability

1 Every oil tanker delivered after 31 December 1979, as defined in regulation 1.28.2, of

150 gross tonnage and above, shall comply with the subdivision and damage stability criteria as

specified in paragraph 3 of this regulation, after the assumed side or bottom damage as specified

in paragraph 2 of this regulation, for any operating draught reflecting actual partial or full load

conditions consistent with trim and strength of the ship as well as relative densities of the cargo.

Such damage shall be applied to all conceivable locations along the length of the ship as follows:

.1 in tankers of more than 225 metres in length, anywhere in the ship's length;

.2 in tankers of more than 150 metres, but not exceeding 225 metres in length,

anywhere in the ship's length except involving either after or forward bulkhead

bounding the machinery space located aft. The machinery space shall be treated

as a single floodable compartment; and

.3 in tankers not exceeding 150 metres in length, anywhere in the ship's length

between adjacent transverse bulkheads with the exception of the machinery space.

For tankers of 100 metres or less in length where all requirements of paragraph 3

of this regulation cannot be fulfilled without materially impairing the operational

qualities of the ship, Administrations may allow relaxations from these

requirements.

Ballast conditions where the tanker is not carrying oil in cargo tanks, excluding any oil residues,

shall not be considered.

2 The following provisions regarding the extent and the character of the assumed damage

shall apply:

.1 Side damage:

1 Longitudinal extent:

��

�3

2

L3

1 or 14.5 metres, whichever is less

2 Transverse extent (inboard from

the ship's side at right angles to the

centreline at the level of the

summer load line):

5B

or 11.5 metres, whichever is less

3 Vertical extent: From the moulded line of the bottom

shell plating at centreline, upwards

without limit

MEPC 52/24/Add.2

ANNEX 2


.2 Bottom damage:

For 0.3L from the

forward perpendicular

of the ship

Any other part of the

ship

1 Longitudinal extent:

��

�3

2

L3

1 or 14.5 metres,

whichever is less

��

�3

2

L3

1or 5 metres,

whichever is less

2 Transverse extent:

6B

or 10 metres,

whichever is less

6B

or 5 metres,

whichever is less

3 Vertical extent:

15B

or 6 metres,

whichever is less,

measured from the

moulded line of the

bottom shell plating at

centreline

15B

or 6 metres,

whichever is less,

measured from the

moulded line of the

bottom shell plating at

centreline

.3 If any damage of a lesser extent than the maximum extent of damage specified in

subparagraphs 2.1 and 2.2 of this paragraph would result in a more severe

condition, such damage shall be considered.

.4 Where the damage involving transverse bulkheads is envisaged as specified in

subparagraphs 1.1 and 1.2 of this regulation, transverse watertight bulkheads shall

be spaced at least at a distance equal to the longitudinal extent of assumed damage

specified in subparagraph 2.1 of this paragraph in order to be considered effective.

Where transverse bulkhead are spaced at a lesser distance, one or more of these

bulkheads within such extent of damage shall be assumed as non-existent for the

purpose of determining flooded compartments.

.5 Where the damage between adjacent transverse watertight bulkheads is envisaged

as specified in subparagraph 1.3 of this regulation, no main transverse bulkhead or

a transverse bulkhead bounding side tanks or double bottom tanks shall be

assumed damaged, unless:

.1 the spacing of the adjacent bulkheads is less than the longitudinal extent of

assumed damage specified in subparagraph 2.1 of this paragraph; or

.2 there is a step or recess in a transverse bulkhead of more than 3.05 metres

in length, located within the extent of penetration of assumed damage.

The step formed by the after peak bulkhead and after peak top shall not be

regarded as a step for the purpose of this regulation.

.6 If pipes, ducts or tunnels are situated within the assumed extent of damage,

arrangements shall be made so that progressive flooding cannot thereby extend to

compartments other than those assumed to be floodable for each case of damage.

MEPC 52/24/Add.2

ANNEX 2


3 Oil tankers shall be regarded as complying with the damage stability criteria if the

following requirements are met:

.1 The final waterline, taking into account sinkage, heel and trim, shall be below the

lower edge of any opening through which progressive flooding may take place.

Such openings shall include air-pipes and those which are closed by means of

weathertight doors or hatch covers and may exclude those openings closed by

means of watertight manhole covers and flush scuttles, small watertight cargo tank

hatch covers which maintain the high integrity of the deck, remotely operated

watertight sliding doors, and sidescuttles of the non-opening type.

.2 In the final stage of flooding, the angle of heel due to unsymmetrical flooding

shall not exceed 25°, provided that this angle may be increased up to 30º if no

deck edge immersion occurs.

.3 The stability in the final stage of flooding shall be investigated and may be

regarded as sufficient if the righting lever curve has at least a range of 20º beyond

the position of equilibrium in association with a maximum residual righting lever

of at least 0.1 metre within the 20º range; the area under the curve within this

range shall not be less than 0.0175 metre radians. Unprotected openings shall not

be immersed within this range unless the space concerned is assumed to be

flooded. Within this range, the immersion of any of the openings listed in

subparagraph 3.1 of this paragraph and other openings capable of being closed

watertight may be permitted.

.4 The Administration shall be satisfied that the stability is sufficient during

intermediate stages of flooding.

.5 Equalization arrangements requiring mechanical aids such as valves or

cross-levelling pipes, if fitted, shall not be considered for the purpose of reducing

an angle of heel or attaining the minimum range of residual stability to meet the

requirements of subparagraphs 3.1, 3.2 and 3.3 of this paragraph and sufficient

residual stability shall be maintained during all stages where equalization is used.

Spaces which are linked by ducts of a large cross-sectional area may be

considered to be common.

4 The requirements of paragraph 1 of this regulation shall be confirmed by calculations

which take into consideration the design characteristics of the ship, the arrangements,

configuration and contents of the damaged compartments; and the distribution, relative densities

and the free surface effect of liquids. The calculations shall be based on the following:

.1 Account shall be taken of any empty or partially filled tank, the relative density of

cargoes carried, as well as any outflow of liquids from damaged compartments.

.2 The permeabilities assumed for spaces flooded as a result of damage shall be as

follows:

MEPC 52/24/Add.2

ANNEX 2


Spaces Permeabilities

Appropriated to stores 0.60

Occupied by accommodation 0.95

Occupied by machinery 0.85

Voids 0.95

Intended for consumable liquids 0 to 0.95*

Intended for other liquids 0 to 0.95*

.3 The buoyancy of any superstructure directly above the side damage shall be

disregarded. The unflooded parts of superstructures beyond the extent of damage,

however, may be taken into consideration provided that they are separated from

the damaged space by watertight bulkheads and the requirements of

subparagraph .1 of this regulation in respect of these intact spaces are complied

with. Hinged watertight doors may be acceptable in watertight bulkheads in the

superstructure.

.4 The free surface effect shall be calculated at an angle of heel of 5º for each

individual compartment. The Administration may require or allow the free

surface corrections to be calculated at an angle of heel greater than 5º for partially

filled tanks.

.5 In calculating the effect of free surfaces of consumable liquids it shall be assumed

that, for each type of liquid at least one transverse pair or a single centreline tank

has a free surface and the tank or combination of tanks to be taken into account

shall be those where the effect of free surface is the greatest.

5 The master of every oil tanker to which this regulation applies and the person in charge of

a non-self-propelled oil tanker, to which this regulation applies shall be supplied in a approved

form with:

.1 information relative to loading and distribution of cargo necessary to ensure

compliance with the provisions of this regulation; and

.2 data on the ability of the ship to comply with damage stability criteria as

determined by this regulation, including the effect of relaxations that may have

been allowed under subparagraph 1.3 of this regulation.

6 For oil tankers of 20,000 tonnes deadweight and above delivered on or after 6 July 1996,

as defined in regulation 1.28.6, the damage assumptions prescribed in paragraph 2.2 of this

regulation shall be supplemented by the following assumed bottom raking damage:

.1 longitudinal extent:

.1 ships of 75,000 tonnes deadweight and above:

0.6L measured from the forward perpendicular;

* The permeability of partially filled compartments shall be consistent with the amount of liquid carried in the

compartment. Whenever damage penetrates a tank containing liquids, it shall be assumed that the contents

are completely lost from that compartment and replaced by salt water up to the level of the final plane of

equilibrium.

MEPC 52/24/Add.2

ANNEX 2


.2 ships of less than 75,000 tonnes deadweight:

0.4L measured from the forward perpendicular;

.2 transverse extent: B/3 anywhere in the bottom;

.3 vertical extent: breach of the outer hull.

Regulation 29 Slop tanks

1 Subject to the provisions of paragraph 4 of regulation 3 of this Annex, oil tankers of

150 gross tonnage and above shall be provided with slop tank arrangements in accordance with

the requirements of paragraphs 2.1 to 2.3 of this regulation. In oil tankers delivered on or before

31 December 1979, as defined in regulation 1.28.1, any cargo tank may be designated as a slop

tank.

2.1 Adequate means shall be provided for cleaning the cargo tanks and transferring the dirty

ballast residue and tank washings from the cargo tanks into a slop tank approved by the

Administration.

2.2 In this system arrangements shall be provided to transfer the oily waste into a slop tank or

combination of slop tanks in such a way that any effluent discharged into the sea will be such as

to comply with the provisions of regulation 34 of this Annex.

2.3 The arrangements of the slop tank or combination of slop tanks shall have a capacity

necessary to retain the slop generated by tank washings, oil residues and dirty ballast residues.

The total capacity of the slop tank or tanks shall not be less than 3 per cent of the oil carrying

capacity of the ship, except that the Administration may accept:

.1 2 per cent for such oil tankers where the tank washing arrangement are such that

once the slop tank or tanks are charged with washing water, this water is sufficient

for tank washing and, where applicable, for providing the driving fluid for

eductors, without the introduction of additional water into the system;

.2 2 per cent where segregated ballast tanks or dedicated clean ballast tanks are

provided in accordance with regulation 18 of this Annex, or where a cargo tank

cleaning system using crude oil washing is fitted in accordance with regulation 3

of this Annex. This capacity may be further reduced to 1.5 per cent for such oil

tankers where the tank washing arrangements are such that once the slop tank or

tanks are charged with washing water, this water is sufficient for tank washing

and, where applicable, for providing the driving fluid for eductors, without the

introduction of additional water into the system; and

.3 1 per cent for combination carriers where oil cargo is only carried in tanks with

smooth walls. This capacity may be further reduced to 0.8 per cent where the tank

washing arrangements are such that once the slop tank or tanks are charged with

washing water, this water is sufficient for tank washing and, where applicable, for

providing the driving fluid for eductors, without the introduction of additional

water into the system.

MEPC 52/24/Add.2

ANNEX 2


2.4 Slop tanks shall be so designed particularly in respect of the position of inlets, outlets,

baffles or weirs where fitted, so as to avoid excessive turbulence and entrainment of oil or

emulsion with the water.

3 Oil tankers of 70,000 tonnes deadweight and above delivered after 31 December 1979, as

defined in regulation 1.28.2, shall be provided with at least two slop tanks.

Regulation 30

Pumping, piping and discharge arrangement

1 In every oil tanker, a discharge manifold for connection to reception facilities for the

discharge of dirty ballast water or oil-contaminated water shall be located on the open deck on

both sides of the ship.

2 In every oil tanker of 150 gross tonnage and above, pipelines for the discharge to the sea

of ballast water or oil contaminated water from cargo tank areas which may be permitted under

regulation 34 of this Annex shall be led to the open deck or to the ship's side above the waterline

in the deepest ballast condition. Different piping arrangements to permit operation in the manner

permitted in subparagraphs 6.1 to 6.5 of this regulation may be accepted.

3 In oil tankers of 150 gross tonnage and above delivered after 31 December 1979, as

defined in regulation 1.28.2, means shall be provided for stopping the discharge into the sea of

ballast water or oil contaminated water from cargo tank areas, other than those discharges below

the waterline permitted under paragraph 6 of this regulation, from a position on the upper deck or

above located so that the manifold in use referred to in paragraph 1 of this regulation and the

discharge to the sea from the pipelines referred to in paragraph 2 of this regulation may be

visually observed. Means for stopping the discharge need not be provided at the observation

position if a positive communication system such as a telephone or radio system is provided

between the observation position and the discharge control position.

4 Every oil tanker delivered after 1 June 1982, as defined in regulation 1.28.4, required to

be provided with segregated ballast tanks or fitted with a crude oil washing system, shall comply

with the following requirements:

.1 it shall be equipped with oil piping so designed and installed that oil retention in

the lines is minimized; and

.2 means shall be provided to drain all cargo pumps and all oil lines at the

completion of cargo discharge, where necessary by connection to a stripping

device. The line and pump draining shall be capable of being discharged both

ashore and to a cargo tank or a slop tank. For discharge ashore a special small

diameter line shall be provided and shall be connected outboard of the ship's

manifold valves.

5 Every crude oil tanker delivered on or before 1 June 1982, as defined in regulation 1.28.3,

required to be provided with segregated ballast tanks, or to be fitted with a crude oil washing

system, shall comply with the provisions of paragraph 4.2 of this regulation.

6 On every oil tanker the discharge of ballast water or oil contaminated water from cargo

tank areas shall take place above the waterline, except as follows:

MEPC 52/24/Add.2

ANNEX 2


.1 Segregated ballast and clean ballast may be discharged below the waterline:

.1 in ports or at offshore terminals, or

.2 at sea by gravity, or

.3 at sea by pumps if the ballast water exchange is performed under the

provisions of regulation D-1.1 of the International Convention for the

Control and Management of Ships' Ballast Water and Sediments.

provided that the surface of the ballast water has been examined either visually or

by other means immediately before the discharge to ensure that no contamination

with oil has taken place.

.2 Oil tankers delivered on or before 31 December 1979, as defined in

regulation 1.28.1, which, without modification, are not capable of discharging

segregated ballast above the waterline may discharge segregated ballast below the

waterline at sea, provided that the surface of the ballast water has been examined

immediately before the discharge to ensure that no contamination with oil has

taken place.

.3 Oil tankers delivered on or before 1 June 1982, as defined in regulation 1.28.3

operating with dedicated clean ballast tanks, which without modification are not

capable of discharging ballast water from dedicated clean ballast tanks above the

waterline, may discharge this ballast below the waterline provided that the

discharge of the ballast water is supervised in accordance with regulation 18.8.3 of

this Annex.

.4 On every oil tanker at sea, dirty ballast water or oil contaminated water from tanks

in the cargo area, other than slop tanks, may be discharged by gravity below the

waterline, provided that sufficient time has elapsed in order to allow oil/water

separation to have taken place and the ballast water has been examined

immediately before the discharge with an oil/water interface detector referred to in

regulation 32 of this Annex, in order to ensure that the height of the interface is

such that the discharge does not involve any increased risk of harm to the marine

environment.

.5 On oil tankers delivered on or before 31 December 1979, as defined in

regulation 1.28.1, at sea dirty ballast water or oil contaminated water from cargo

tank areas may be discharged below the waterline, subsequent to or in lieu of the

discharge by the method referred to in subparagraph 6.4 of this paragraph,

provided that:

.1 a part of the flow of such water is led through permanent piping to a

readily accessible location on the upper deck or above where it may be

visually observed during the discharge operation; and

.2 such part flow arrangements comply with the requirements established by

the Administration, which shall contain at least all the provisions of the

Specifications for the Design, Installation and Operation of a Part Flow

MEPC 52/24/Add.2

ANNEX 2


System for Control of Overboard Discharges adopted by the

Organization*.

7 Every oil tanker of 150 gross tonnage and above delivered on or after 1 January 2010, as

defined in regulation 1.28.8, which has installed a sea chest that is permanently connected to the

cargo pipeline system, shall be equipped with both a sea chest valve and an inboard isolation

valve. In addition to these valves, the sea chest shall be capable of isolation from the cargo

piping system whilst the tanker is loading, transporting, or discharging cargo by use of a positive

means that is to the satisfaction of the Administration. Such a positive means is a facility that is

installed in the pipeline system in order to prevent, under all circumstances, the section of

pipeline between the sea chest valve and the inboard valve being filled with cargo.

PART B EQUIPMENT

Regulation 31

Oil discharge monitoring and control system

1 Subject to the provisions of paragraphs 4 and 5 of regulation 3 of this Annex, oil tankers

of 150 gross tonnage and above shall be equipped with an oil discharge monitoring and control

system approved by the Administration.

2 In considering the design of the oil content meter to be incorporated in the system, the

Administration shall have regard to the specification recommended by the Organization.† The

system shall be fitted with a recording device to provide a continuous record of the discharge in

litres per nautical mile and total quantity discharged, or the oil content and rate of discharge.

This record shall be identifiable as to time and date and shall be kept for at least three years. The

oil discharge monitoring and control system shall come into operation when there is any

discharge of effluent into the sea and shall be such as will ensure that any discharge of oily

mixture is automatically stopped when the instantaneous rate of discharge of oil exceeds that

permitted by regulation 34 of this Annex. Any failure of this monitoring and control system shall

stop the discharge. In the event of failure of the oil discharge monitoring and control system a

manually operated alternative method may be used, but the defective unit shall be made operable

as soon as possible. Subject to allowance by the port State authority a tanker with a defective oil

discharge monitoring and control system may undertake one ballast voyage before proceeding to

a repair port.

3 The oil discharge monitoring and control system shall be designed and installed in

compliance with the guidelines and specifications for oil discharge monitoring and control

* See appendix 4 to Unified Interpretations. † For oil content meters installed on oil tankers built prior to 2 October 1986, refer to the Recommendation

on international performance and test specifications for oily-water separating equipment and oil content

meters adopted by the Organization by resolution A.393(X). For oil content meters as part of discharge

monitoring and control systems installed on oil tankers built on or after 2 October 1986, refer to the

Guidelines and specifications for oil discharge monitoring and control systems for oil tankers adopted by

the Organization by resolution A.586(14). For oil content meters as part of discharge monitoring and

control systems installed on oil tankers the keel of which are laid or which are in a similar stage of

construction on or after 1 January 2005, refer to the revised Guidelines and specifications for oil discharge

monitoring and control systems for oil tankers adopted by the Organization by resolution MEPC.108(49).

MEPC 52/24/Add.2

ANNEX 2


system for oil tankers developed by the Organization‡. Administrations may accept such specific

arrangements as detailed in the Guidelines and Specifications.

4 Instructions as to the operation of the system shall be in accordance with an operational

manual approved by the Administration. They shall cover manual as well as automatic

operations and shall be intended to ensure that at no time shall oil be discharged except in

compliance with the conditions specified in regulation 34 of this Annex.

Regulation 32

Oil/water interface detector*

Subject to the provisions of paragraphs 4 and 5 of regulation 3 of this Annex, oil tankers

of 150 gross tonnage and above shall be provided with effective oil/water interface detectors

approved by the Administration for a rapid and accurate determination of the oil/water interface

in slop tanks and shall be available for use in other tanks where the separation of oil and water is

effected and from which it is intended to discharge effluent direct to the sea.

Regulation 33

Crude oil washing requirements

1 Every crude oil tanker of 20,000 tonnes deadweight and above delivered after

1 June 1982, as defined in regulation 1.28.4, shall be fitted with a cargo tank cleaning system

using crude oil washing. The Administration shall ensure that the system fully complies with the

requirements of this regulation within one year after the tanker was first engaged in the trade of

carrying crude oil or by the end of the third voyage carrying crude oil suitable for crude oil

washing, whichever occurs later.

2 Crude oil washing installation and associated equipment and arrangements shall comply

with the requirements established by the Administration. Such requirements shall contain at least

all the provisions of the Specifications for the Design, Operation and Control of Crude Oil

Washing Systems adopted by the Organization†. When a ship is not required, in accordance with

paragraph 1 of this regulation to be, but is equipped with crude oil washing equipment, it shall

comply with the safety aspects of the above-mentioned Specifications.

3 Every crude oil washing system required to be provided in accordance with

regulation 18.7 of this Annex shall comply with the requirements of this regulation.

‡ Refer to the Guidelines and Specifications for Oil Discharge Monitoring and Control Systems for

Oil Tankers adopted by the Organization by resolution A.496 (XII) or the Revised Guidelines and

Specifications for Oil Discharge Monitoring and Control Systems for Oil Tankers adopted by the

Organization by resolution A.586(14), or the Revised Guidelines and Specifications for Oil Discharge

Monitoring and Control Systems for Oil Tankers adopted by the Organization by resolution MEPC.108(49)

as applicable.

* Refer to the Specifications for Oil/Water Interface Detectors adopted by the Organization by

resolution MEPC.5(XIII).

† Refer to the revised Specifications for the design, operation and control of crude oil washing systems

adopted by the Organization by resolution A.446(XI) and amended by the Organization by

resolution A.497(XII) and as further amended by resolution A.897(21).

MEPC 52/24/Add.2

ANNEX 2


PART C CONTROL OF OPERATIONAL DISCHARGES OF OIL

Regulation 34

Control of discharge of oil

A. Discharges outside special areas

1 Subject to the provisions of regulation 4 of this Annex and paragraph 2 of this regulation,

any discharge into the sea of oil or oily mixtures from the cargo area of an oil tanker, shall be

prohibited except when all the following conditions are satisfied:

.1 the tanker is not within a special area;

.2 the tanker is more than 50 nautical miles from the nearest land;

.3 the tanker is proceeding en route;

.4 the instantaneous rate of discharge of oil content does not exceed 30 litres per

nautical mile;

.5 the total quantity of oil discharged into the sea does not exceed for tankers

delivered on or before 31 December 1979, as defined in regulation 1.28.1,

1/15,000 of the total quantity of the particular cargo of which the residue formed a

part, and for tankers delivered after 31 December 1979, as defined in regulation

1.28.2, 1/30,000 of the total quantity of the particular cargo of which the residue

formed a part; and

.6 the tanker has in operation an oil discharge monitoring and control system and a

slop tank arrangement as required by regulations 29 and 31 of this Annex.

2 The provisions of paragraph 1 of this regulation shall not apply to the discharge of clean

or segregated ballast.

B. Discharges in special areas

3 Subject to the provisions of paragraph 4 of this regulation, any discharge into the sea of

oil or oily mixture from the cargo area of an oil tanker shall be prohibited while in a special area�.

4 The provisions of paragraph 3 of this regulation shall not apply to the discharge of clean

or segregated ballast.

5 Nothing in this regulation shall prohibit a ship on a voyage only part of which is in a

special area from discharging outside the special area in accordance with paragraph 1 of this

regulation.

C. Requirements for oil tankers of less than 150 gross tonnage

6 The requirements of regulations 29, 31 and 32 of this Annex shall not apply to oil tankers

of less than 150 gross tonnage, for which the control of discharge of oil under this regulation

� Refer to regulation 38.6

MEPC 52/24/Add.2

ANNEX 2


shall be effected by the retention of oil on board with subsequent discharge of all contaminated

washings to reception facilities. The total quantity of oil and water used for washing and

returned to a storage tank shall be discharged to reception facilities unless adequate arrangements

are made to ensure that any effluent which is allowed to be discharged into the sea is effectively

monitored to ensure that the provisions of this regulation are complied with.

D. General requirements

7 Whenever visible traces of oil are observed on or below the surface of the water in the

immediate vicinity of a ship or its wake, the Governments of Parties to the present Convention

should, to the extent they are reasonably able to do so, promptly investigate the facts bearing on

the issue of whether there has been a violation of the provisions of this regulation. The

investigation should include, in particular, the wind and sea conditions, the track and speed of the

ship, other possible sources of the visible traces in the vicinity, and any relevant oil discharge

records.

8 No discharge into the sea shall contain chemicals or other substances in quantities or

concentrations which are hazardous to the marine environment or chemicals or other substances

introduced for the purpose of circumventing the conditions of discharge specified in this

regulation.

9 The oil residues which cannot be discharged into the sea in compliance with paragraphs 1

and 3 of this regulation shall be retained on board for subsequent discharge to reception facilities.

Regulation 35

Crude oil washing operations

1 Every oil tanker operating with crude oil washing systems shall be provided with an

Operations and Equipment Manual* detailing the system and equipment and specifying

operational procedures. Such a Manual shall be to the satisfaction of the Administration and shall

contain all the information set out in the specifications referred to in paragraph 2 of regulation 33

of this Annex. If an alteration affecting the crude oil washing system is made, the Operations

and Equipment Manual shall be revised accordingly.

2 With respect to the ballasting of cargo tanks, sufficient cargo tanks shall be crude oil

washed prior to each ballast voyage in order that, taking into account the tanker's trading pattern

and expected weather conditions, ballast water is put only into cargo tanks which have been

crude oil washed.

3 Unless an oil tanker carries crude oil which is not suitable for crude oil washing, the oil

tanker shall operate the crude oil washing system in accordance with the Operations and

Equipment Manual.

* Refer to the Standard Format of the Crude Oil Washing Operation and Equipment Manual adopted by the

Marine Environment Protection Committee of the Organization by resolution MEPC.3(XII), as amended by

resolution MEPC.81(43).

MEPC 52/24/Add.2

ANNEX 2


Regulation 36

Oil Record Book, Part II - Cargo/ballast operations

1 Every oil tanker of 150 gross tonnage and above shall be provided with an Oil Record

Book Part II (Cargo/Ballast Operations). The Oil Record Book Part II, whether as a part of the

ship's official logbook or otherwise, shall be in the Form specified in appendix III to this Annex.

2 The Oil Record Book Part II shall be completed on each occasion, on a tank-to-tank basis

if appropriate, whenever any of the following cargo/ballast operations take place in the ship:

.1 loading of oil cargo;

.2 internal transfer of oil cargo during voyage;

.3 unloading of oil cargo;

.4 ballasting of cargo tanks and dedicated clean ballast tanks;

.5 cleaning of cargo tanks including crude oil washing;

.6 discharge of ballast except from segregated ballast tanks;

.7 discharge of water from slop tanks;

.8 closing of all applicable valves or similar devices after slop tank discharge

operations;

.9 closing of valves necessary for isolation of dedicated clean ballast tanks from

cargo and stripping lines after slop tank discharge operations; and

.10 disposal of residues.

3 For oil tankers referred to in regulation 34.6 of this Annex, the total quantity of oil and

water used for washing and returned to a storage tank shall be recorded in the Oil Record Book

Part II.

4 In the event of such discharge of oil or oily mixture as is referred to in regulation 4 of this

Annex or in the event of accidental or other exceptional discharge of oil not excepted by that

regulation, a statement shall be made in the Oil Record Book Part II of the circumstances of, and

the reasons for, the discharge.

5 Each operation described in paragraph 2 of this regulation shall be fully recorded without

delay in the Oil Record Book Part II so that all entries in the book appropriate to that operation

are completed. Each completed operation shall be signed by the officer or officers in charge of

the operations concerned and each completed page shall be signed by the master of ship. The

entries in the Oil Record Book Part II shall be at least in English, French or Spanish. Where

entries in an official language of the State whose flag the ship is entitled to fly are also used, this

shall prevail in case of dispute or discrepancy.

MEPC 52/24/Add.2

ANNEX 2


6 Any failure of the oil discharge monitoring and control system shall be noted in the

Oil Record Book Part II.

7 The Oil Record Book shall be kept in such a place as to be readily available for inspection

at all reasonable times and, except in the case of unmanned ships under tow, shall be kept on

board the ship. It shall be preserved for a period of three years after the last entry has been made.

8 The competent authority of the Government of a Party to the Convention may inspect the

Oil Record Book Part II on board any ship to which this Annex applies while the ship is in its

port or offshore terminals and may make a copy of any entry in that book and may require the

master of the ship to certify that the copy is a true copy of such entry. Any copy so made which

has been certified by the master of the ship as a true copy of an entry in the ship's Oil Record

Book Part II shall be made admissible in any judicial proceedings as evidence of the facts stated

in the entry. The inspection of an Oil Record Book Part II and the taking of a certified copy by

the competent authority under this paragraph shall be performed as expeditiously as possible

without causing the ship to be unduly delayed.

9 For oil tankers of less than 150 gross tonnage operating in accordance with

regulation 34.6 of this Annex, an appropriate Oil Record Book should be developed by the

Administration.

CHAPTER 5 - PREVENTION OF POLLUTION ARISING FROM AN

OIL POLLUTION INCIDENT

Regulation 37

Shipboard oil pollution emergency plan

1 Every oil tanker of 150 gross tonnage and above and every ship other than an oil tanker of

400 gross tonnage and above shall carry on board a shipboard oil pollution emergency plan

approved by the Administration.

2 Such a plan shall be prepared based on guidelines* developed by the Organization and

written in the working language of the master and officers. The plan shall consist at least of:

.1 the procedure to be followed by the master or other persons having charge of the

ship to report an oil pollution incident, as required in article 8 and Protocol I of the

present Convention, based on the guidelines developed by the Organization;†

.2 the list of authorities or persons to be contacted in the event of an oil pollution

incident;

.3 a detailed description of the action to be taken immediately by persons on board to

reduce or control the discharge of oil following the incident; and

* Refer to the Guidelines for the development of shipboard oil pollution emergency plans adopted by the

Organization by resolution MEPC.54(32) as amended by resolution MEPC.86(44). † Refer to the General Principles for Ship Reporting Systems and Ship Reporting Requirements, including

Guidelines for Reporting Incidents Involving Dangerous Goods, Harmful Substances and/or

Marine Pollutants adopted by the Organization by resolution A.851(20).

MEPC 52/24/Add.2

ANNEX 2


.4 the procedures and point of contact on the ship for co-ordinating shipboard action

with national and local authorities in combating the pollution.

3 In the case of ships to which regulation 17 of Annex II of the present Convention also

apply, such a plan may be combined with the shipboard marine pollution emergency plan for

noxious liquid substances required under regulation 17 of Annex II of the present Convention. In

this case, the title of such a plan shall be “Shipboard marine pollution emergency plan”.

4 All oil tankers of 5,000 tons deadweight or more shall have prompt access to

computerised, shore-based damage stability and residual structural strength calculation programs.

CHAPTER 6 - RECEPTION FACILITIES

Regulation 38

Reception facilities

A. Reception facilities outside special areas

1 The Government of each Party to the present Convention undertakes to ensure the

provision at oil loading terminals, repair ports, and in other ports in which ships have oily

residues to discharge, of facilities for the reception of such residues and oily mixtures as remain

from oil tankers and other ships adequate‡ to meet the needs of the ships using them without

causing undue delay to ships.

2 Reception facilities in accordance with paragraph 1 of this regulation shall be provided in:

.1 all ports and terminals in which crude oil is loaded into oil tankers where such

tankers have immediately prior to arrival completed a ballast voyage of not more

than 72 hours or not more than 1,200 nautical miles;

.2 all ports and terminals in which oil other than crude oil in bulk is loaded at an

average quantity of more than 1,000 tonnes per day;

.3 all ports having ship repair yards or tank cleaning facilities;

.4 all ports and terminals which handle ships provided with the sludge tank(s)

required by regulation 12 of this Annex;

.5 all ports in respect of oily bilge waters and other residues, which cannot be

discharged in accordance with regulation 15 of this Annex; and

.6 all loading ports for bulk cargoes in respect of oil residues from combination

carriers which cannot be discharged in accordance with regulation 34 of this

Annex.

‡ See resolution MEPC.83(44) “Guidelines for ensuring the adequacy of port waste reception facilities”.

MEPC 52/24/Add.2

ANNEX 2


3 The capacity for the reception facilities shall be as follows:

.1 Crude oil loading terminals shall have sufficient reception facilities to receive oil

and oily mixtures which cannot be discharged in accordance with the provisions

of regulation 34.1 of this Annex from all oil tankers on voyages as described in

paragraph 2.1 of this regulation.

.2 Loading ports and terminals referred to in paragraph 2.2 of this regulation shall

have sufficient reception facilities to receive oil and oily mixtures which cannot be

discharged in accordance with the provisions of regulation 34.1 of this Annex

from oil tankers which load oil other than crude oil in bulk.

.3 All ports having ship repair yards or tank cleaning facilities shall have sufficient

reception facilities to receive all residues and oily mixtures which remain on board

for disposal from ships prior to entering such yards or facilities.

.4 All facilities provided in ports and terminals under paragraph 2.4 of this regulation

shall be sufficient to receive all residues retained according to regulation 12 of this

Annex from all ships that may reasonably be expected to call at such ports and

terminals.

.5 All facilities provided in ports and terminals under this regulation shall be

sufficient to receive oily bilge waters and other residues which cannot be

discharged in accordance with regulation 15 of this Annex.

.6 The facilities provided in loading ports for bulk cargoes shall take into account the

special problems of combination carriers as appropriate.

B. Reception facilities within special areas

4 The Government of each Party to the present Convention the coastline of which borders

on any given special area shall ensure that all oil loading terminals and repair ports within the

special area are provided with facilities adequate for the reception and treatment of all the dirty

ballast and tank washing water from oil tankers. In addition all ports within the special area shall

be provided with adequate* reception facilities for other residues and oily mixtures from all ships.

Such facilities shall have adequate capacity to meet the needs of the ships using them without

causing undue delay.

5 The Government of each Party to the present Convention having under its jurisdiction

entrances to seawater courses with low depth contour which might require a reduction of draught

by the discharge of ballast shall ensure the provision of the facilities referred to in paragraph 4 of

this regulation but with the proviso that ships required to discharge slops or dirty ballast could be

subject to some delay.

* See resolution MEPC.83(44) “Guidelines for ensuring the adequacy of port waste reception facilities”.

MEPC 52/24/Add.2

ANNEX 2


6 With regard to the Red Sea area, Gulfs area, Gulf of Aden area and Oman area of the

Arabian Sea:

.1 Each Party concerned shall notify the Organization of the measures taken pursuant

to provisions of paragraphs 4 and 5 of this regulation. Upon receipt of sufficient

notifications the Organization shall establish a date from which the discharge

requirements of regulations 15 and 34 of this Annex in respect of the area in

question shall take effect. The Organization shall notify all Parties of the date so

established no less than twelve months in advance of that date.

.2 During the period between the entry into force of the present Convention and the

date so established, ships while navigating in the special area shall comply with

the requirements of regulations 15 and 34 of this Annex as regards discharges

outside special areas.

.3 After such date oil tankers loading in ports in these special areas where such

facilities are not yet available shall also fully comply with the requirements of

regulations 15 and 34 of this Annex as regards discharges within special areas.

However, oil tankers entering these special areas for the purpose of loading shall

make every effort to enter the area with only clean ballast on board.

.4 After the date on which the requirements for the special area in question take

effect, each Party shall notify the Organization for transmission to the Parties

concerned of all cases where the facilities are alleged to be inadequate.

.5 At least the reception facilities as prescribed in paragraphs 1, 2 and 3 of this

regulation shall be provided one year after the date of entry into force of the

present Convention.

7 Notwithstanding paragraphs 4, 5 and 6 of this regulation, the following rules apply to the

Antarctic area:

.1 The Government of each Party to the present Convention at whose ports ships

depart en route to or arrive from the Antarctic area undertakes to ensure that as

soon as practicable adequate facilities are provided for the reception of all sludge,

dirty ballast, tank washing water, and other oily residues and mixtures from all

ships, without causing undue delay, and according to the needs of the ships using

them.

.2 The Government of each Party to the present Convention shall ensure that all

ships entitled to fly its flag, before entering the Antarctic area, are fitted with a

tank or tanks of sufficient capacity on board for the retention of all sludge, dirty

ballast, tank washing water and other oily residues and mixtures while operating

in the area and have concluded arrangements to discharge such oily residues at a

reception facility after leaving the area.

C. General requirements

8 Each Party shall notify the Organization for transmission to the Parties concerned of all

cases where the facilities provided under this regulation are alleged to be inadequate.

MEPC 52/24/Add.2

ANNEX 2


CHAPTER 7 - SPECIAL REQUIREMENTS FOR FIXED OR FLOATING PLATFORMS

Regulation 39 Special requirements for fixed or floating platforms

1 This regulation applies to fixed or floating platforms including drilling rigs, floating

production, storage and offloading facilities (FPSOs) used for the offshore production and

storage of oil, and floating storage units (FSUs) used for the offshore storage of produced oil.

2 Fixed or floating platforms when engaged in the exploration, exploitation and associated

offshore processing of sea-bed mineral resources and other platforms shall comply with the

requirements of this Annex applicable to ships of 400 gross tonnage and above other than oil

tankers, except that:

.1 they shall be equipped as far as practicable with the installations required in

regulations 12 and 14 of this Annex;

.2 they shall keep a record of all operations involving oil or oily mixture discharges,

in a form approved by the Administration; and

.3 subject to the provisions of regulation 4 of this Annex, the discharge into the sea

of oil or oily mixture shall be prohibited except when the oil content of the

discharge without dilution does not exceed 15 parts per million.

3 In verifying compliance with this Annex in relation to platforms configured as FPSOs or

FSUs, in addition to the requirements of paragraph 2, Administrations should take account of the

Guidelines developed by the Organization�.

APPENDICES TO ANNEX I

Appendix I List of oils

Appendix II Form of IOPP Certificate and Supplements

Appendix III Form of Oil Record Book

� Refer to resolution MEPC …(..) “Guidelines for the application of MARPOL Annex I requirements to

FPSOs and FSUs.”

MEPC 52/24/Add.2

ANNEX 2


APPENDIX I

LIST OF OILS*

Asphalt solutions Gasoline blending stocks

Blending stocks Alkylates – fuel

Roofers flux Reformates

Straight run residue Polymer – fuel

Gasolines

Oils Casinghead (natural)

Clarified Automotive

Crude oil Aviation

Mixtures containing crude oil Straight run

Diesel oil Fuel oil no. 1 (kerosene)

Fuel oil no. 4 Fuel oil no. 1-D

Fuel oil no. 5 Fuel oil no. 2

Fuel oil no. 6 Fuel oil no. 2-D

Residual fuel oil

Road oil

Transformer oil Jet fuels

Aromatic oil (excluding vegetable oil) JP-1 (kerosene)

Lubricating oils and blending stocks JP-3

Mineral oil JP-4

Motor oil JP-5 (kerosene, heavy)

Penetrating oil Turbo fuel

Spindle oil Kerosene

Turbine oil Mineral spirit

Distillates

Straight run

Flashed feed stocks Naphtha

Solvent

Petroleum

Gas oil Heartcut distillate oil

Cracked

_______________________________

* This list of oils shall not necessarily be considered as comprehensive.

MEPC 52/24/Add.2

ANNEX 2


APPENDIX II

FORM OF IOPP CERTIFICATE AND SUPPLEMENTS

INTERNATIONAL OIL POLLUTION PREVENTION CERTIFICATE

(Note: This certificate shall be supplemented by a Record of Construction and Equipment)

Issued under the provisions of the International Convention for the Prevention of Pollution from

Ships, 1973, as modified by the Protocol of 1978 relating thereto, as amended, (hereinafter

referred to as “the Convention") under the authority of the Government of :

(full designation of the country)

by

(full designation of the competent person or organization authorized under the provisions of the Convention)

Particulars of ship�

Name of ship

Distinctive number or letters

Port of registry

Gross tonnage

Deadweight of ship (tonnes)†

IMO Number‡

� Alternatively, the particulars of the ship may be placed horizontally in boxes.

† For oil tankers

‡ Refer to the IMO Ship Identification Number Scheme adopted by the Organization by resolution A.600(15).

MEPC 52/24/Add.2

ANNEX 2


Type of ship:*

Oil tanker

Ship other than an oil tanker with cargo tanks coming under regulation 2.2 of Annex I of

the Convention

Ship other than any of the above

THIS IS TO CERTIFY:

1. That the ship has been surveyed in accordance with regulation 6 of Annex I of the

Convention; and

2. That the survey shows that the structure, equipment systems, fittings, arrangement

and material of the ship and the condition thereof are in all respects satisfactory

and that the ship complies with the applicable requirements of Annex I of the

Convention.

This certificate is valid until ...............……………...†

subject to surveys in accordance with regulation 6 of Annex I of the Convention.

Completion date of the survey on which this certificate is based: dd/mm/yyyy…………

Issued at ….………………………………………………

(Place of issue of certificate)

……………..... …………………………………… (Date of issue) (Signature of authorized official issuing the certificate)

(Seal or stamp of the authority, as appropriate)

* Delete as appropriate

† Insert the date of expiry as specified by the Administration in accordance with regulation 10.1 of Annex I

of the Convention. The day and the month of this day correspond to the anniversary date as defined in

regulation 1.27 of Annex I of the Convention, unless amended in accordance with regulation 10.8 of

Annex I of the Convention.

MEPC 52/24/Add.2

ANNEX 2


ENDORSEMENT FOR ANNUAL AND INTERMEDIATE SURVEYS

THIS IS TO CERTIFY that at a survey required by regulation 6 of Annex I of the Convention the

ship was found to comply with the relevant provisions of the Convention:

Annual survey: Signed ..........................................................

(Signature of duly authorized official)

Place .............................................................

Date ..............................................................

(Sea/ or stamp of the authority, as appropriate)

Annual*/Intermediate survey*: Signed ...........................................................


Place .............................................................

Date ..............................................................


Annual*/Intermediate survey*: Signed ............................................................


Place .............................................................

Date ..............................................................


Annual survey: Signed ..........................................................


Place ............................................................

Date .............................................................



MEPC 52/24/Add.2

ANNEX 2


ANNUAL/INTERMEDIATE SURVEY IN ACCORDANCE

WITH REGULATION 10.8.3

THIS IS TO CERTIFY that, at an annual/intermediate* survey in accordance with regulation

10.8.3 of Annex I of the Convention, the ship was found to comply with the relevant provisions

of the Convention:

Signed ..........................................................


Place ............................................................

Date .............................................................


ENDORSEMENT TO EXTEND THE CERTIFICATE IF VALID

FOR LESS THAN 5 YEARS WHERE REGULATION 10.3 APPLIES

The ship complies with the relevant provisions of the Convention, and this Certificate shall, in

accordance with regulation 10.3 of Annex I of the Convention, be accepted as valid

until………………………

Signed ..........................................................


Place ............................................................

Date .............................................................


ENDORSEMENT WHERE THE RENEWAL SURVEY HAS BEEN

COMPLETED AND REGULATION 10.4 APPLIES

The ship complies with the relevant provisions of the Convention and this Certificate shall, in

accordance with regulation 10.4 of Annex I of the Convention, be accepted as valid until

…………………

Signed ..........................................................


Place ............................................................

Date .............................................................



MEPC 52/24/Add.2

ANNEX 2


ENDORSEMENT TO EXTEND THE VALIDITY OF THE CERTIFICATE UNTIL

REACHING THE PORT OF SURVEY OR FOR A PERIOD OF GRACE

WHERE REGULATION 10.5 OR 10.6 APPLIES

This Certificate shall, in accordance with regulation 10.5 or 10.6* of Annex I of the Convention,

be accepted as valid until …………………..

Signed ..........................................................


Place ............................................................

Date .............................................................


ENDORSEMENT FOR ADVANCEMENT OF ANNIVERSARY DATE

WHERE REGULATION 10.8 APPLIES

In accordance with regulation 10.8 of Annex I of the Convention the new anniversary date is

…………….

Signed ..........................................................


Place ............................................................

Date .............................................................


In accordance with regulation 10.8 of Annex I of the Convention the new anniversary date is

…………….

Signed ..........................................................


Place ............................................................

Date .............................................................



MEPC 52/24/Add.2

ANNEX 2


FORM A

Supplement to the International Oil Pollution Prevention Certificate

(IOPP Certificate)

RECORD OF CONSTRUCTION AND EQUIPMENT FOR SHIPS OTHER

THAN OIL TANKERS

in respect of the provisions of Annex I of the International Convention for the Prevention of

Pollution from Ships, 1973, as modified by the Protocol of 1978 relating thereto (hereinafter

referred to as "the Convention").

Notes:

1 This form is to be used for the third type of ships as categorized in the IOPP Certificate,

i.e. "ships other than any of the above". For oil tankers and ships other than oil tankers

with cargo tanks coming under regulation 2.2 of Annex I of the Convention, Form B shall

be used.

2 This Record shall be permanently attached to the IOPP Certificate. The IOPP Certificate

shall be available on board the ship at all times.

3 If the language of the original Record is neither English nor French nor Spanish, the text

shall include a translation into one of these languages.

4 Entries in boxes shall be made by inserting either a cross (x) for the answers "yes" and

"applicable" or a dash (-) for the answers "no" and "not applicable" as appropriate.

5 Regulations mentioned in this Record refer to regulations of Annex I of the Convention

and resolutions refer to those adopted by the International Maritime Organization.

1. Particulars of ship

1.1 Name of ship

1.2 Distinctive number or letters

1.3 Port of registry

1.4 Gross tonnage

1.5 Date of build:

1.5.1 Date of building contract

1.5.2 Date on which keel was laid or ship was at a similar stage

of construction

1.5.3 Date of delivery

MEPC 52/24/Add.2

ANNEX 2


1.6 Major conversion (if applicable):

1.6.1 Date of conversion contract

1.6.2 Date on which conversion was commenced

1.6.3 Date of completion of conversion

1.7 The ship has been accepted by the Administration as a

“ship delivered on or before 31 December 1979”

under regulation 1.28.1 due to unforeseen delay in delivery �

2. Equipment for the control of oil discharge from

machinery space bilges and oil fuel tanks

(regulations 16 and 14)

2.1 Carriage of ballast water in oil fuel tanks:

2.1.1 The ship may under normal conditions carry ballast water

in oil fuel tanks �

2.2 Type of oil filtering equipment fitted:

2.2.1 Oil filtering (15 ppm) equipment �

(regulation 14.6)

2.2.2 Oil filtering (15 ppm) equipment with alarm and

automatic stopping device (regulation 14.7) �

2.3 Approval standards:*

2.3.1 The separating/filtering equipment:

.1 has been approved in accordance with

resolution A.393(X); �


resolution MEPC.60(33); �



* Refer to the Recommendation on international performance and test specifications of oily-water separating

equipment and oil content meters adopted by the Organization on 14 November 1977 by

resolution A.393(X), which superseded resolution A.233(VII). Further reference is made to the Guidelines

and specifications for pollution prevention equipment for machinery space bilges adopted by the Marine

Environment Protection Committee of the Organization by resolution MEPC.60(33), which, effective on 6

July 1993, superseded resolutions A.393(X) and A.444(XI)(see IMO sales publication IMO-646E); and to

the revised Guidelines and specifications for pollution prevention equipment for machinery spaces of ships

adopted by the Marine Environment Protection Committee of the Organization by resolution

MEPC.107(49) which, effective on 1 January 2005, superseded resolutions MEPC.60(33), A.393(X) and

A.444(XI) (see IMO sales publication IMO-……).

MEPC 52/24/Add.2

ANNEX 2



resolution A.233(VII); �


national standards not based upon

resolution A.393(X) or A.233(VII); �

.6 has not been approved. �

2.3.2 The process unit has been approved in accordance with

resolution A.444(XI) �

2.3.3 The oil content meter :






resolution MEPC.107(49). �

2.4 Maximum throughput of the system is ............ m3/h

2.5 Waiver of regulation 14:

2.5.1 The requirements of regulation 14.1 or 14.2 are waived in respect of the ship in

accordance with regulation 14.5.

2.5.1.1 The ship is engaged exclusively on voyages within

special area(s): �

2.5.1.2 The ship is certified under the International Code of Safety

for High-Speed Craft and engaged on a scheduled service

with a turn-around time not exceeding 24 hours �

2.5.2 The ship is fitted with holding tank(s) for the total

retention on board of all oily bilge water as follows: �

Tank location

Tank

identification

Frames

(from) - (to)

Lateral position

Volume

(m3)

Total volume: ......………..m3

MEPC 52/24/Add.2

ANNEX 2


3. Means for retention and disposal of oil residues (sludge)

(regulation 12) and bilge water holding tank(s)*

3.1 The ship is provided with oil residue (sludge) tanks as follows:

Tank location

Tank

identification

Frames

(from) - (to)

Lateral position

Volume

(m3)


3.2 Means for the disposal of residues in addition to the provisions of sludge tanks:

3.2.1 Incinerator for oil residues, capacity .....……... l/h �

3.2.2 Auxiliary boiler suitable for burning oil residues �

3.2.3 Tank for mixing oil residues with fuel oil, capacity ........ m3 �

3.2.4 Other acceptable means: �

3.3 The ship is provided with holding tank(s) for the retention on board of oily

bilge water as follows:

Tank location

Tank

identification

Frames

(from) - (to)

Lateral position

Volume

(m3)


4. Standard discharge connection

(regulation 13)

4.1 The ship is provided with a pipeline for the discharge of residues

from machinery bilges and sludges to reception facilities, fitted

with a standard discharge connection in accordance with

regulation 13 �

* Bilge water holding tank(s) are not required by the Convention, entries in the table under paragraph 3.3 are

voluntary.

MEPC 52/24/Add.2

ANNEX 2


5. Shipboard oil/marine pollution emergency plan

(regulation 37)

5.1 The ship is provided with a shipboard oil pollution emergency

plan in compliance with regulation 37 �

5.2 The ship is provided with a shipboard marine pollution emergency

plan in compliance with regulation 37.3 �

6. Exemption

6.1 Exemptions have been granted by the Administration from the

requirements of chapter 3 of Annex I of the Convention in

accordance with regulation 3.1 on those items listed under

paragraph(s)

of this Record �

7. Equivalents (regulation 5)

7.1 Equivalents have been approved by the Administration for

certain requirements of Annex I on those items listed under

paragraph(s) of this Record �

THIS IS TO CERTIFY that this Record is correct in all respects.

Issued at ………………………………………………………………..

(Place of issue of the Record)

………………………… ……………………………………………………

(Signature of duly authorized official issuing the Record)

(Seal or stamp of the issuing authority, as appropriate)

MEPC 52/24/Add.2

ANNEX 2


FORM B

Supplement to the International Oil Pollution Prevention Certificate

(IOPP Certificate)

RECORD OF CONSTRUCTION AND EQUIPMENT FOR OIL TANKERS

in respect of the provisions of Annex I of the International Convention for the Prevention of

Pollution from Ships, 1973, as modified by the Protocol of 1978 relating thereto (hereinafter

referred to as "the Convention").

Notes:

1 This form is to be used for the first two types of ships as categorized in the IOPP

Certificate, i.e. "oil tankers” and “ships other than oil tankers with cargo tanks coming

under regulation 2.2 of Annex I of the Convention”. For the third type of ships as

categorized in the IOPP Certificate, Form A shall be used.

2 This Record shall be permanently attached to the IOPP Certificate. The IOPP Certificate

shall be available on board the ship at all times.

3 If the language of the original Record is neither English nor French nor Spanish, the text

shall include a translation into one of these languages.

4 Entries in boxes shall be made by inserting either a cross (x) for the answers "yes" and

"applicable" or a dash (-) for the answers "no" and "not applicable" as appropriate.

5 Unless otherwise stated, regulations mentioned in this Record refer to regulations of

Annex I of the Convention and resolutions refer to those adopted by the International

Maritime Organization.

1. Particulars of ship

1.1 Name of ship

1.2 Distinctive number or letters

1.3 Port of registry

1.4 Gross tonnage

1.5 Carrying capacity of ship (m3)

1.6 Deadweight of ship (tonnes) (regulation 1.23)

1.7 Length of ship (m) (regulation 1.19)

MEPC 52/24/Add.2

ANNEX 2


1.8 Date of build:

1.8.1 Date of building contract

1.8.2 Date on which keel was laid or ship was at a similar stage

of construction

1.8.3 Date of delivery

1.9 Major conversion (if applicable):

1.9.1 Date of conversion contract

1.9.2 Date on which conversion was commenced

1.9.3 Date of completion of conversion.

1.10 Unforeseen delay in delivery:

1.10.1 The ship has been accepted by the Administration as

a “ship delivered on or before 31 December 1979"


1.10.2 The ship has been accepted by the Administration as an

“oil tanker delivered on or before 1 June 1982”


1.10.3 The ship is not required to comply with the provisions of

regulation 26 due to unforeseen delay in delivery �

1.11 Type of ship:

1.11.1 Crude oil tanker �

1.11.2 Product carrier �

1.11.3 Product carrier not carrying fuel oil or heavy diesel oil as referred to

in regulation 20.2, or lubricating oil �

1.11.4 Crude oil/product carrier �

1.11.5 Combination carrier �

1.11.6 Ship, other than an oil tanker, with cargo tanks coming

under regulation 2.2 of Annex I of the Convention �

1.11.7 Oil tanker dedicated to the carriage of products referred to

in regulation 2.4 �

MEPC 52/24/Add.2

ANNEX 2


1.11.8 The ship, being designated as a "crude oil tanker" operating

with COW, is also designated as a "product carrier"

operating with CBT, for which a separate IOPP

Certificate has also been issued �

1.11.9 The ship, being designated as a "product carrier" operating

with CBT, is also designated as a "crude oil tanker" operating

with COW, for which a separate IOPP Certificate has also

been issued �

2. Equipment for the control of oil discharge from

machinery space bilges and oil fuel tanks

(regulations 16 and 14)

2.1 Carriage of ballast water in oil fuel tanks:

2.1.1 The ship may under normal conditions carry ballast water

in oil fuel tanks �

2.2 Type of oil filtering equipment fitted:

2.2.1 Oil filtering (15 ppm) equipment

(regulation 14.6) �

2.2.2 Oil filtering (15 ppm) equipment with alarm and

automatic stopping device (regulation 14.7) �

2.3 Approval standards: *

2.3.1 The separating/filtering equipment:








resolution A.233(VII); �

* Refer to the Recommendation on international performance and test specifications of oily-water separating

equipment and oil content meters adopted by the Organization on 14 November 1977 by

resolution A.393(X), which superseded resolution A.233(VII); Further reference is made to the Guidelines

and specifications for pollution prevention equipment for machinery space bilges adopted by the Marine

Environment Protection Committee of the Organization by resolution MEPC.60(33), which, effective on

6 July 1993, superseded resolutions A.393(X) and A.444(XI) (see IMO sales publication IMO-646E); and

to the revised Guidelines and specifications for pollution prevention equipment for machinery spaces of

ships adopted by the Marine Environment Protection Committee of the Organization by resolution

MEPC.107(49) which, effective on 1 January 2005, superseded resolutions MEPC.60(33), A.393(X) and

A.444(XI) (see IMO sales publication IMO….).

MEPC 52/24/Add.2

ANNEX 2



national standards not based upon

resolution A.393(X) or A.233(VII); �

.6 has not been approved. �

2.3.2 The process unit has been approved in accordance with

resolution A.444(XI) �

2.3.3 The oil content meter :






resolution MEPC.107(49). �

2.4 Maximum throughput of the system is m3/h

2.5 Waiver of regulation 14:

2.5.1 The requirements of regulation 14.1 or 14.2 are waived in respect of the ship in

accordance with regulation 14.5.

The ship is engaged exclusively on voyages within

special area(s): �

2.5.2 The ship is fitted with holding tank(s) for the total

retention on board of all oily bilge water as follows : �

Tank location

Tank

identification

Frames

(from) - (to)

Lateral position

Volume

(m3)


2.5.3 In lieu of the holding tank(s) the ship is provided with

arrangements to transfer bilge water to the slop tank �

MEPC 52/24/Add.2

ANNEX 2


3. Means for retention and disposal of oil residues (sludge)

(regulation 12) and bilge water holding tank(s)*

3.1 The ship is provided with oil residue (sludge) tanks as follows:

Tank location

Tank

identification

Frames

(from) - (to)

Lateral position

Volume

(m3)


3.2 Means for the disposal of residues in addition to the provisions of sludge tanks:

3.2.1 Incinerator for oil residues, capacity l/h �

3.2.2 Auxiliary boiler suitable for burning oil residues �

3.2.3 Tank for mixing oil residues with fuel oil, capacity m3 �

3.2.4 Other acceptable means: �

3.3 The ship is provided with holding tank(s) for the retention on board of oily bilge

water as follows:

Tank location

Tank

identification

Frames

(from) - (to)

Lateral position

Volume

(m3)


4. Standard discharge connection

(regulation 13)

4.1 The ship is provided with a pipeline for the discharge of residues

from machinery bilges and sludges to reception facilities, fitted

with a standard discharge connection in accordance

with regulation 13 �

* Bilge water holding tank(s) are not required by the Convention, entries in the table under paragraph 3.3 are

voluntary.

MEPC 52/24/Add.2

ANNEX 2


5. Construction (regulations 18, 19, 20, 23, 26, 27 and 28)

5.1 In accordance with the requirements of regulation 18, the ship is:

5.1.1 Required to be provided with SBT, PL and COW �

5.1.2 Required to be provided with SBT and PL �

5.1.3 Required to be provided with SBT �

5.1.4 Required to be provided with SBT or COW �

5.1.5 Required to be provided with SBT or CBT �

5.1.6 Not required to comply with the requirements of regulation 18 �

5.2 Segregated ballast tanks (SBT):

5.2.1 The ship is provided with SBT in compliance with regulation 18 �

5.2.2 The ship is provided with SBT, in compliance with

regulation 18, which are arranged in protective locations (PL)

in compliance with regulations 18.12 to 18.15 �

5.2.3 SBT are distributed as follows:

Tank Volume (m3) Tank Volume (m

3)

Total volume: .........m3

5.3 Dedicated clean ballast tanks (CBT):

5.3.1 The ship is provided with CBT in compliance with

regulation 18.8, and may operate as a product carrier �

5.3.2 CBT are distributed as follows:

Tank Volume (m3) Tank Volume (m

3)

Total volume: ..........m3

MEPC 52/24/Add.2

ANNEX 2


5.3.3 The ship has been supplied with a valid Dedicated Clean

Ballast Tank Operation Manual, which is dated �

5.3.4 The ship has common piping and pumping arrangements

for ballasting the CBT and handling cargo oil �

5.3.5 The ship has separate independent piping and pumping

arrangements for ballasting the CBT �

5.4 Crude oil washing (COW):

5.4.1 The ship is equipped with a COW system in compliance

with regulation 33 �

5.4.2 The ship is equipped with a COW system in compliance

with regulation 33 except that the effectiveness of the

system has not been confirmed in accordance with

regulation 33.1 and paragraph 4.2.10 of the Revised

COW Specifications (resolution A.446(XI) as amended by

resolutions A.497(XII) and A.897(21)) �

5.4.3 The ship has been supplied with a valid Crude Oil

Washing Operations and Equipment Manual which

is dated �

5.4.4 The ship is not required to be but is equipped with COW

in compliance with the safety aspects of the Revised

COW Specifications (resolution A.446(XI) as amended by

resolutions A.497(XII) and A.897(21)) �

5.5 Exemption from regulation 18:

5.5.1 The ship is solely engaged in trade between

in accordance with regulation 2.5 and is therefore

exempted from the requirements of regulation 18 �

5.5.2 The ship is operating with special ballast arrangements in

accordance with regulation 18.10 and is therefore exempted

from the requirements of regulation 18 �

5.6 Limitation of size and arrangements of cargo tanks (regulation 26):

5.6.1 The ship is required to be constructed according to, and

complies with, the requirements of regulation 26 �

5.6.2 The ship is required to be constructed according to and

complies with, the requirements of regulation 26.4 (see

regulation 2.2) �

MEPC 52/24/Add.2

ANNEX 2


5.7 Subdivision and stability (regulation 28):



5.7.2 Information and data required under regulation 28.5 have

been supplied to the ship in an approved form �



5.7.4 Information and data required under regulation 27

For combination carriers have been supplied to the ship

n a written procedure approved by the Administration �

5.8 Double-hull construction:

5.8.1 The ship is required to be constructed according to regulation 19

and complies with the requirements of:

.1 paragraph (3) (double-hull construction) �

.2 paragraph (4) (mid-height deck tankers with double

side construction) �

.3 paragraph (5) (alternative method approved by the

Marine Environment Protection Committee) �

5.8.2 The ship is required to be constructed according to and

complies with the requirements of regulation 19.6

(double bottom requirements) �

5.8.3 The ship is not required to comply with the requirements of

regulation 19 �

5.8.4 The ship is subject to regulation 20 and:

.1 is required to comply with paragraphs 2 to 5, 7 and 8 of

regulation 19 and regulation 28 in respect of paragraph 28.6

not later than �

.2 is allowed to continue operation in accordance with regulation 20.5 until �

.3 is allowed to continue operation in accordance with regulation 20.7

until �

5.8.5 The ship is not subject to regulation 20 �


MEPC 52/24/Add.2

ANNEX 2


.1 is required to comply with regulation 21.4

not later than �

.2 is allowed to continue operation in accordance with regulation 21.5

until �

.3 is allowed to continue operation in accordance with regulation 21.6.1

until �

.4 is allowed to continue operation in accordance with regulation 21.6.2

until �

.5 is exempted from the provisions of regulation 21 in accordance with

regulation 21.7.2 �



.1 complies with the requirements of regulation 22.2 �




5.9 Accidental oil outflow performance

5.9.1 The ship complies with the requirements of regulation 23 �

6. Retention of oil on board (regulations 29, 31 and 32)

6.1 Oil discharge monitoring and control system:

6.1.1 The ship comes under category oil tanker

as defined in resolution A.496(XII) or A.586(14)� (delete as appropriate) �

6.1.2 The oil discharge monitoring and control system has been approved in accordance

with resolution MEPC.108(49)��

�

6.1.3 The system comprises:

.1 control unit �

� Oil tankers the keels of which are laid, or which are at a similar stage of construction, on or after

2 October 1986 should be fitted with a system approved under resolution A.586(14); see IMO sales

publication IMO-646E. �� Oil tankers the keels of which are laid, or which are at a similar stage of construction, on or after

1 January 2005 should be fitted with a system approved under resolution MEPC.108(49) (see IMO sales

publication IMO …).

MEPC 52/24/Add.2

ANNEX 2


.2 computing unit �

.3 calculating unit �

6.1.4 The system is:

.1 fitted with a starting interlock �

.2 fitted with automatic stopping device �

6.1.5 The oil content meter is approved under the terms of resolution A.393(X)

or A.586(14)† or MEPC.108(49) (delete as appropriate) suitable for:

.1 crude oil �

.2 black products �

.3 white products �

.4 oil-like noxious liquid substances as listed in the

attachment to the certificate �

6.1.6 The ship has been supplied with an operations manual for

the oil discharge monitoring and control system �

6.2 Slop tanks:

The ship is provided with dedicated slop tank(s)

with the total capacity of m3, which is % of the

oil carrying capacity, in accordance with:

.1 regulation 29.2.3 �

.2 regulation 29.2.3.1 �



6.2.2 Cargo tanks have been designated as slop tanks �

† For oil content meters installed on tankers built prior to 2 October 1986, refer to the Recommendation on

international performance and test specifications for oily-water separating equipment and oil content meters

adopted by the Organization by resolution A.393(X). For oil content meters as part of discharge monitoring

and control systems installed on tankers built on or after 2 October 1986, refer to the Guidelines and

specifications for oil discharge monitoring and control systems for oil tankers adopted by the Organization

by resolution A.586(14); see IMO sales publication IMO-646E. For oil content meters as part of discharge

monitoring and control systems installed on tankers the keel of which are laid or are in a similar stage of

construction on or after 1 January 2005, refer to the revised Guidelines and specifications for oil discharge

monitoring and control systems for oil tankers adopted by the Organization by resolution MEPC.108(49);

see IMO sales publication IMO …. ..

MEPC 52/24/Add.2

ANNEX 2


6.3 Oil/water interface detectors:

6.3.1 The ship is provided with oil/water interface detectors

approved under the terms of resolution MEPC.5(XIII)* �

6.4 Exemptions from regulations 29, 31 and 32:

6.4.1 The ship is exempted from the requirements of regulations 29,

31 and 32 in accordance with regulation 2.4 �

6.4.2 The ship is exempted from the requirements of regulations 29,

31 and 32 in accordance with regulation 2.2 �

6.5 Waiver of regulation:

6.5.1 The requirements of regulations 31 and 32 are waived in respect

of the ship in accordance with regulation 3.5. The ship

is engaged exclusively on:

.1 specific trade under regulation 2.5:

�

.2 voyages within special area(s):

�

.3 voyages within 50 nautical miles of the nearest land outside

special area(s) of 72 hours or less in duration restricted

to:

�

7. Pumping, piping and discharge arrangements

(regulation 30)

7.1 The overboard discharge outlets for segregated ballast are located:

7.1.1. Above the waterline �

7.1.2 Below the waterline �

7.2 The overboard discharge outlets, other than the discharge manifold, for

clean ballast are located†:

7.2.1 Above the waterline �


7.3 The overboard discharge outlets, other than the discharge manifold,

* Refer to the Specification for oil/water interface detectors adopted by the Marine Environment Protection

Committee of the Organization by resolution MEPC.5(XIII); see IMO sales publication IMO-646E.

† Only those outlets which can be monitored are to be indicated.

MEPC 52/24/Add.2

ANNEX 2


for dirty ballast water or oil-contaminated water from cargo

tank areas are located:

7.3.1 Above the waterline �

7.3.2 Below the waterline in conjunction with the part flow

arrangements in compliance with regulation 30.6.5 �


7.4 Discharge of oil from cargo pumps and oil lines (regulations 30.4

and 30.5):

7.4.1 Means to drain all cargo pumps and oil lines at the completion

of cargo discharge:

.1 drainings capable of being discharged to a cargo tank

or slop tank �

.2 for discharge ashore a special small-diameter line is

provided �

8. Shipboard oil/marine pollution emergency plan

(regulation 37)

8.1 The ship is provided with a shipboard oil pollution emergency

plan in compliance with regulation 37 �

8.2 The ship is provided with a shipboard marine pollution emergency

plan in compliance with regulation 37.3 �

9. Exemption

9.1 Exemptions have been granted by the Administration from the

requirements of chapter 3 of Annex I of the Convention in

accordance with regulation 3.1 on those items listed under

paragraph(s)

of this Record �

10. Equivalents (regulation 5)

10.1 Equivalents have been approved by the Administration for

certain requirements of Annex I on those items listed under

paragraph(s) of this Record �

MEPC 52/24/Add.2

ANNEX 2


THIS IS TO CERTIFY that this Record is correct in all respects.

Issued at ………………………………………………………………………………………….

(Place of issue of the Record)

………………………… ………………………………………………………………

(Signature of duly authorized official issuing the Record)

(Seal or stamp of the issuing authority, as appropriate)

MEPC 52/24/Add.2

ANNEX 2


APPENDIX III

FORM OF OIL RECORD BOOK

OIL RECORD BOOK

PART I - Machinery space operations

(All Ships)

Name of Ship: .............................................................................................................

Distinctive number

or letters: ......................................................................................................................

Gross tonnage: .............................................................................................................

Period from: ....................................... to: ...........................................................

Note: Oil Record Book Part I shall be provided to every oil tanker of 150 gross tonnage and above and

every ship of 400 gross tonnage and above, other than oil tankers, to record relevant machinery space

operations. For oil tankers, Oil Record Book Part II shall also be provided to record relevant cargo/ballast

operations.

MEPC 52/24/Add.2

ANNEX 2


Introduction

The following pages of this section show a comprehensive list of items of machinery space

operations which are, when appropriate, to be recorded in the Oil Record Book Part I in

accordance with regulation 17 of Annex I of the International Convention for the Prevention of

Pollution from Ships, 1973, as modified by the Protocol of 1978 relating thereto

(MARPOL 73/78). The items have been grouped into operational sections, each of which is

denoted by a letter Code.

When making entries in the Oil Record Book Part I, the date, operational Code and item number

shall be inserted in the appropriate Columns and the required particulars shall be recorded

chronologically in the blank spaces.

Each completed operation shall be signed for and dated by the officer or officers in charge. The

master of the Ship shall sign each completed page.

The Oil Record Book Part I contains many references to oil quantity. The limited accuracy of

tank Measurement devices, temperature variations and clingage will affect the accuracy of these

readings. The entries in the Oil Record Book Part I should be considered accordingly.

In the event of accidental or other exceptional discharge of oil statement shall be made in the

Oil Record Book Part I of the circumstances of, and the reasons for, the discharge.

Any failure of the oil filtering equipment shall be noted in the Oil Record Book Part I.

The entries in the Oil Record Book Part I, for ships holding an IOPP Certificate, shall be at least

in English, French or Spanish. Where entries in official language of the State whose flag the ship

is entitled to fly are also used, this shall prevail in case of a dispute or discrepancy.

The Oil Record Book Part I shall be kept in such a place as to be readily available for inspection

at all reasonable times and, except in the case of unmanned ships under tow, shall be kept on

board the ship. It shall be preserved for a period of three years after the last entry has been made.

The competent authority of the Government of a Party to the Convention may inspect the

Oil Record Book Part I on board any ship to which this Annex applies while the ship is in its port

or offshore terminals and may make a copy of any entry in that book and may require the master

of the ship to certify that the copy is a true copy of such entry. Any copy so made which has

been certified by the master of the ship as a true copy of an entry in the Oil Record Book Part I

shall be made admissible in any juridical proceedings as evidence of the facts stated in the entry.

The inspection of an Oil Record Book Part I and the taking of a certified copy by the competent

authority under this paragraph shall be performed as expeditiously as possible without causing

the ship to be unduly delayed.

MEPC 52/24/Add.2

ANNEX 2


LIST OF ITEMS TO BE RECORDED

(A) Ballasting or cleaning of oil fuel tanks

1. Identity of tank(s) ballasted.

2. Whether cleaned since they last contained oil and, if not, type of oil previously

carried.

3. Cleaning process:

.1 position of ship and time at the start and completion of cleaning;

.2 identify tank(s) in which one or another method has been employed

(rinsing through, steaming, cleaning with chemicals; type and quantity of

chemicals used, in m3);

.3 identity of tank(s) into which cleaning water was transferred.

4. Ballasting:

.1 position of ship and time at start and end of ballasting;

.2 quantity of ballast if tanks are not cleaned, in m3.

(B) Discharge of dirty ballast or cleaning water from oil fuel tanks referred to under

Section A)

5. Identity of tank(s).

6. Position of ship at start of discharge.

7. Position of ship on completion of discharge.

8. Ship's speed(s) during discharge.

9. Method of discharge:

.1 through 15 ppm equipment

.2 to reception facilities.

10. Quantity discharged, in m3.

MEPC 52/24/Add.2

ANNEX 2


(C) Collection and disposal of oil residues (sludge and other oil residues)

11. Collection of oil residues

Quantities of oil residues (sludge and other oil residues) retained on board. The

quantity should be recorded weekly1: (This means that the quantity must be

recorded once a week even if the voyage lasts more than one week)

.1 - identity of tank(s) …………………………………………

.2 - capacity of tank(s) ……..………………………………… m3

.3 - total quantity of retention ………………………..………. m3

12. Methods of disposal of residue.

State quantity of oil residues disposed of, the tank(s) emptied and the quantity of

contents retained in m3:

.1 to reception facilities (identify port)2;

.2 transferred to another (other) tank(s) (indicate tank(s) and the total content

of tank(s))

.3 incinerated (indicate total time of operation);

.4 other method (state which).

(D) Non-automatic discharge overboard or disposal otherwise of bilge water which has

accumulated in machinery spaces

13. Quantity discharged or disposed of, in cubic metres.3

14. Time of discharge or disposal (starts and stop).

15. Method of discharge or disposal:

.1 through 15 ppm equipment (state position at start and end);

.2 to reception facilities (identify port)2;

1 Tanks listed in item 3.1 of form A and B of the supplement in the IOPP Certificate used for sludge. 2 Ship’s masters should obtain from the operator of the reception facilities, which includes barges and tank

trucks, a receipt or certificate detailing the quantity of tank washings, dirty ballast, residues or oily mixtures

transferred, together with the time and date of the transfer. This receipt or certificate, if attached to the

Oil Record Book Part I, may aid the master of the ship in proving that his ship was not involved in an

alleged pollution incident. The receipt or certificate should be kept together with the Oil Record Book

Part I. 3 In case of discharge or disposal of bilge water from holding tank(s), state identity and capacity of holding

tank(s) and quantity retained in holding tank.

MEPC 52/24/Add.2

ANNEX 2


.3 transfer to slop tank or holding tank (indicate tank(s); state the total

quantity retained in tank(s), in m3).

(E) Automatic discharge overboard or disposal otherwise of bilge water which has

accumulated in machinery spaces

16. Time and position of ship at which the system has been put into automatic mode

of operation for discharge overboard, through 15 ppm equipment.

17. Time when the system has been put into automatic mode of operation for transfer

of bilge water to holding tank (identify tank).

18. Time when the system has been put into manual operation.

(F) Condition of the oil filtering equipment

19. Time of system failure4.

20. Time when system has been made operational.

21. Reasons for failure.

(G) Accidental or other exceptional discharges of oil

22. Time of occurrence.

23. Place or position of ship at time of occurrence.

24. Approximate quantity and type of oil.

25. Circumstances of discharge or escape, the reasons therefore and general remarks.

(H) Bunkering of fuel or bulk lubricating oil

26. Bunkering:

.1 Place of bunkering.

.2 Time of bunkering.

.3 Type and quantity of fuel oil and identity of tank(s) (state quantity added,

in tonnes and total content of tank(s)).

.4 Type and quantity of lubricating oil and identity of tank(s) (state quantity

added, in tonnes and total content of tank (s)).

4 The condition of the oil filtering equipment covers also the alarm and automatic stopping devices, if applicable.

MEPC 52/24/Add.2

ANNEX 2


(I) Additional operational procedures and general remarks

______________

Name of ship

Distinctive number or letters

MACHINERY SPACE OPERATIONS Date Code

(letter)

Item

(number)

Record of operations/signature of officer in charge

Signature of master

MEPC 52/24/Add.2

ANNEX 2


OIL RECORD BOOK

PART II – Cargo / Ballast Operations

(Oil Tankers)

Name of Ship: .............................................................................................................

Distinctive number

or letters: ......................................................................................................................

Gross tonnage: .............................................................................................................

Period from: ....................................... to: ........................................................

Note: Every oil tanker of 150 gross tonnage and above shall be provided with Oil Record Book Part II to

record relevant cargo/ballast operations. Such a tanker shall also be provided with Oil Record Book Part I

to record relevant machinery space operations.

MEPC 52/24/Add.2

ANNEX 2


Name of Ship ………………………………………………………………………………………

Distinctive number or letters ……………………………………………………………………….

PLAN VIEW OF CARGO AND SLOP TANKS

(to be completed on board)

Identification

of tanks

Capacity

Depth of slop

tank(s):

(Give the capacity of each tank

and the depth of slop tank(s))

Pump room

MEPC 52/24/Add.2

ANNEX 2


Introduction

The following pages of this section show a comprehensive list of items of cargo and ballast

operations which are, when appropriate, to be recorded in the Oil Record Book Part II in

accordance with regulation 36 of Annex I of the International Convention for the Prevention of

Pollution from Ships, 1973, as modified by the Protocol of 1978 relating thereto

(MARPOL 73/78). The items have been grouped into operational section, each of which is

denoted by a code letter.

When making entries in the Oil Record Book Part II, the date, operational code and item number

shall be inserted in the appropriate columns and the required particulars shall be recorded

chronologically in the blank spaces.

Each completed operation shall be signed for and dated by the officer or officers in charge. Each

completed page shall be countersigned by the master of the ship.

In respect of the oil tankers engaged in specific trades in accordance with regulation 2.5 of

Annex I of MARPOL 73/78, appropriate entry in the Oil Record Book Part II shall be endorsed

by the competent port State authority.�

The Oil Record Book Part II contains many references to oil quantity. The limited accuracy of

tank Measurement devices, temperature variations and clingage will affect the accuracy of these

readings. The entries in the Oil Record Book Part II should be considered accordingly.

In the event of accidental or other exceptional discharge of oil a statement shall be made in the

Oil Record Book Part II of the circumstances of, and the reasons for, the discharge.

Any failure of the oil discharge monitoring and control system shall be noted in the Oil Record

Book Part II.

The entries in the Oil Record Book Part II, for ships holding an IOPP Certificate, shall be at least

in English, French or Spanish. Where entries in an official language of the State whose flag the

ship is entitled to fly are also used, this shall prevail in case of a dispute or discrepancy.

The Oil Record Book Part II shall be kept in such a place as to be readily available for inspection

at all reasonable times and, except in the case of unmanned Ships under tow, shall be kept on

board the Ship. It shall be preserved for a period of three years after the last entry has been

made.

The competent authority of the Government of a Party to the Convention may inspect the Oil

Record Book Part II on board any Ship to which this Annex applies while the Ship is in its port

or offshore terminals and may make a copy of any entry in that book and may require the master

of the Ship to certify that the copy is a true copy of such entry. Any copy so made which has

been certified by the master of the Ship as a true copy of an entry in the Oil Record Book Part II

shall be made admissible in any juridical proceedings as evidence of the facts stated in the entry.

The inspection of an Oil Record Book Part II and taking of a certified copy by the competent

authority under this paragraph shall be performed as expeditiously as possible without causing

the ship to be unduly delayed.

� This sentence should only be inserted for the Oil Record Book of a tanker engaged in a specific trade.

MEPC 52/24/Add.2

ANNEX 2


LIST OF ITEMS TO BE RECORDED

(A) Loading of oil cargo

1. Place of loading.

2. Type of oil loaded and identity of tank(s).

3. Total quantity of oil loaded (state quantity added, in m3 at 15

oC and the total

content of tank(s), in m3).

(B) Internal transfer of oil cargo during voyage

4. Identity of tank(s):

.1 from:

.2 to: (state quantity transferred and total quantity of tank(s), in m3).

5. Was (were) the tank(s) in 4.1 emptied? (If not, state quantity retained, in m3.)

(C) Unloading of oil cargo

6. Place of unloading.

7. Identity of tank(s) unloaded.

8. Was (were) the tank(s) emptied? (If not, state quantity retained, in m3.)

(D) Crude oil washing (COW tankers only)

(To be completed for each tank being crude oil washed)

9. Port where crude oil washing was carried out or ship's position if carried out

between two discharge ports.

10. Identity of tank(s) washed.�

11. Number of machines in use.

12. Time of start of washing.

13. Washing pattern employed.�

14. Washing line pressure.

� When an individual tank has more machines than can be operated simultaneously, as described in the

Operations and Equipment Manual, then the section being crude oil washed should be identified,

e.g. No.2 centre, forward section. � In accordance with the Operations and Equipment Manual, enter whether single-stage or multi-stage

method of washing is employed. If multi-stage method is used, give the vertical arc covered by the

machines and the number of times that arc is covered for that particular stage of the programme.

MEPC 52/24/Add.2

ANNEX 2


15. Time washing was completed or stopped.

16. State method of establishing that tank(s) was (were) dry.

17. Remarks.�

(E) Ballasting of cargo tanks

18. Position of ship at start and end of ballasting.

19. Ballasting process:

.1 identity of tank(s) ballasted;

.2 time of start and end; and

.3 quantity of ballast received. Indicate total quantity of ballast for each tank

involved in operation, in m3.

(F) Ballasting of dedicated clean ballast tanks (CBT tankers only)


21. Position of ship when water intended for flushing, or port ballast was taken to

dedicated clean ballast tank(s).

22. Position of ship when pump(s) and lines were flushed to slop tank.

23. Quantity of the oily water which, after line flushing, is transferred to the slop

tank(s) or cargo tank(s) in which slop is preliminarily stored (identify tank(s)).

State total quantity, in m3.

24. Position of ship when additional ballast water was taken to dedicated clean ballast

tank(s).

25. Time and position of ship when valves separating the dedicated clean ballast tanks

from cargo and stripping lines were closed.

26. Quantity of clean ballast taken on board, in m3.

(G) Cleaning of cargo tanks

27. Identity of tank(s) cleaned.

28. Port or ship's position.

29. Duration of cleaning.

� If the programmes given in the Operations and Equipment Manual are not followed, then the reasons must

be given under Remarks.

MEPC 52/24/Add.2

ANNEX 2


30. Method of cleaning.�

31. Tank washings transferred to:

.1 reception facilities (state port and quantity, in m3)

5; and

.2 sloptank(s) or cargo tank(s) designated as sloptank(s) (identify tank(s);

state quantity transferred and total quantity, in m3).

(H) Discharge of dirty ballast

32. Identity of tank(s).

33. Time and position of ship at start of discharge into the sea.

34. Time and position of ship on completion of discharge into the sea.

35. Quantity discharged into the sea, in m3.


37. Was the discharge monitoring and control system in operation during the

discharge?

38. Was a regular check kept on the effluent and the surface of the water in the

locality of the discharge?

39. Quantity of oily water transferred to slop tank(s) (identify slop tank(s). State total

quantity, in m3.

40. Discharged to shore reception facilities (identify port and quantity involved,

in m3).�

(I) Discharge of water from slop tanks into the sea

41. Identity of slop tanks.

42. Time of settling from last entry of residues, or

43. Time of settling from last discharge.

� Hand-hosing, machine washing and/or chemical cleaning. Where chemically cleaned, the chemical

concerned and amount used should be stated. � Ships' masters should obtain from the operator of the reception facilities, which include barges and tank

trucks, a receipt or certificate detailing the quantity or tank washings, dirty ballast, residues or oily mixtures

transferred together with the time and date or the transfer. This receipt or certificate, if attached to the

Oil Record Book Part II, may aid the master of the ship in proving that his ship was not involved in an

alleged pollution incident. The receipt or the certificate should be kept together with the Oil Record Book

Part II.

MEPC 52/24/Add.2

ANNEX 2


44. Time and position of ship at start of discharge.

45. Ullage of total contents at start of discharge.

46. Ullage of oil/water interface at start of discharge.

47. Bulk quantity discharged, in m3 and rate of discharge, in m

3 /hour.

48. Final quantity discharged, in m3 and rate of discharge, in m

3/hour.

49. Time and position of ship on completion of discharge.

50. Was the discharge monitoring and control system in operation during the

discharge?

51. Ullage of oil/ water interface on completion of discharge, in metres.


53. Was regular check kept on the effluent and the surface of water in the locality of

the discharge?

54. Confirm that all applicable valves in the ship's piping system have been closed on

completion of discharge from the slop tanks.

(J) Disposal of residues and oily mixtures not otherwise dealt with

55. Identity of tanks.

56. Quantity disposed of from each tank. (State the quantity retained, in m3.)

57. Method of disposal:

.1 to reception facilities (identify port and quantity involved)5;

.2 mixed with cargo (state quantity);

.3 transferred to (an)other tank(s) (identify tank(s); state quantity transferred

and total quantity in tank(s), in m3); and

.4 other method (state which); state quantity disposed of, in m3.

(K) Discharge of clean ballast contained in cargo tanks

58. Position of ship at start of clean ballast.

5 Ships' masters should obtain from the operator of the reception facilities, which include barges and tank


transferred together with the time and date or the transfer. This receipt or certificate, if attached to the



Part II.

MEPC 52/24/Add.2

ANNEX 2


59. Identity of tank(s) discharged.

60. Was (were) the tank(s) empty on completion?

61. Position of ship on completion if different from 58.

62. Was a regular check kept on the effluent and the surface of the water in the

locality of the discharge?

(L) Discharge of ballast from dedicated clean ballast tanks (CBT tankers only)

63. Identity of tank(s) discharged.

64. Time and position of ship at start of discharge of clean ballast into the sea.

65. Time and position of ship on completion of discharge into the sea.

66. Quantity discharged, in m3:

.1 into the sea; or

.2 to reception facility (identify port).�

67. Was there any indication of oil contamination of the ballast water before or during

discharge into the sea?

68. Was the discharge monitored by an oil content meter?

69. Time and position of ship when valves separating dedicated clean ballast tanks

from the cargo and stripping lines were closed on completion of deballasting.

(M) Condition of oil discharge monitoring and control system

70. Time of system failure.

71. Time when system has been made operational.

72. Reasons for failure.

(N) Accidental or other exceptional discharges of oil

73. Time of occurrence.

74. Port or ship's position at time of occurrence.

� Ships' masters should obtain from the operator of the reception facilities, which include barges and tank


transferred, together with the time and date or the transfer. This receipt or certificate, if attached to the



Part II.

MEPC 52/24/Add.2

ANNEX 2


75. Approximate quantity, in m3, and type of oil.

76. Circumstances of discharge or escape, the reasons therefore and general remarks.

(O) Additional operational procedures and general remarks

TANKERS ENGAGED IN SPECIFIC TRADES

(P) Loading of ballast water


78. Position of ship when ballasted.

79. Total quantity of ballast loaded in cubic metres.

80. Remarks.

(Q) Re-allocation of ballast water within the ship

81. Reason for re-allocation.

(R) Ballast water discharge to reception facility

82. Port(s) where ballast water was discharged.

83. Name or designation of reception facility.

84. Total quantity of ballast water discharged in cubic metres.

85. Date, signature and stamp of port authority official.

MEPC 52/24/Add.2

ANNEX 2


Name of ship .....................................................................................................................................

Distinctive number or letters .............................................................................................................

CARGO/BALLAST OPERATIONS (OIL TANKERS)

Date Code

(letter) Item

(number) Record of operations/signature of officer in charge

Signature of master

_________

mepc 52/24/add.2 annex 2 resolution mepc.117(52 ... · concerning the functions of the marine...

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